Shop Best Concrete Fence Post Solar Lights in Kemeco

2021-08-08
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Kemeco Lighting has been a preferred manufacturer in the field of concrete fence post solar lights. Based on the cost-effective principle, we endeavor to reduce costs in the design phase and we conduct price negotiation with suppliers while selecting the raw materials. We fine-tune all the significant factors to ensure truly efficient and cost-saving production. Kemeco branded products stand steadily in the market at affordable prices, therefore satisfied customers continue to buy from us. These products have superior market influence, creating huge profit value for customers. They are well praised in many exhibitions and product promotion conferences. We keep interacting with our customers and seeking feedback for our products in order to boost the retention rate.Kemeco Lighting gathers a team of well trained members who are always ready to solve problems. If you want to make a difference in product design, our talented designers will do it; if you like to talk about the MOQ, our teams of production and sales will cooperate to make it...A good example is set by concrete fence post solar lights.
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Best Solar Christmas Lights2018
Best Solar Christmas Lights2018
Best solar powered christmas lightsChristmas is fast approaching and so is the festive season. Solar lights which are used for patio occasional lighting and for walkway lights have change into much more efficient at storing the power they get from the solar and altering that energy into plenty of vivid light. 1. Verify the grade of LED used to ensure your lights shine brightly at night time — search for the description “ultra vivid” LED’s.The smaller lights are barely seen throughout the parking lot from the street. • For high lighting garden ornaments, timber, or flowers you need to use a highlight, as they are going to simply shine on that individual piece of landscape. The photo voltaic panel will rework power into the rechargeable battery and once the battery is charged sufficient, it can power the photo voltaic fairy lights, making them utterly electrical energy free.Most lights have photo voltaic panels in-built but separate photo voltaic panels generally equals brighter gentle. This power is then saved in a battery to light the photo voltaic Christmas lights when the solar goes down. The atmosphere absorbs most of this energy and one third of the daylight is mirrored back into house.In the course of the summer season, solar lights ought to be capable of shine bright all evening, however throughout the winter, chances are you’ll wish to look out for any bushes or obstacles that block the daylight, because of the lack of daylight during this season. Outside spotlights have many purposes starting from offering additional security, providing further security, excessive-lighting pathways, providing numerous forms of ambiance. lighting stands for mild-emitting diode. If you wish to play an element in conserving energy and stopping the unnecessary consumption of assets, then LED deck lighting is the perfect lighting solution for you. And the best worth lights here are the Blooma Aurora LED Photo voltaic Stake Lights which are good quality for a really low price·RELATED QUESTIONWhat is proffesional led stage lighting?When you're putting on an occasion, whether it is an unassuming school play or a party, stage lighting rental is an unquestionable requirement. Lighting is a main thrust of your production, giving brightening, center, detail and modifying the view of the group of audience. There is nothing that so vitally passes on an inclination superior to a decent lighting system, and with boundless inventive potential, will serve as an immense advantage for your creation.Focus, position and hanging:Conventional stage lighting must be set up because of these three contemplations. Focus refers to where the light will point; position alludes to where the light will start from; hanging refers to the real demonstration of hanging the light. Shading, force and example (assuming any) should be considered next.Types of stage lighting :Ellipsoidal - these lights are the conventional stage lights and thought to be the most critical. They are centering lights, the appearance in front of an audience of which can be adjusted by screens and channels.Fresnel - these lights are utilized for shading washes on the stage.Standard Jars - these lights are the sort you will see in even the dingiest of bars. Continuously a strong choice, standard jars can get hammered, are sturdy and simple to transport.Follow spots - these are spotlights used to pursue somebody around a phase.Obviously, there are increasingly choices accessible for stage lighting with the consistent progress of innovation. Presently you have the fundamentals; here are a couple of more alternatives:LEDs - these Professional LED Stage Lightingare useful for centered pillars and have been gradually supplanting conventional globules in stage lighting.Dizzies - these lights are round circles with a few Drove lights (more often than not of varying hues) covering the surface. The circle pivots in an assortment of bearings and examples, making a whirling, confounding example, consequently the name.Gels - this term alludes to the hues given to lights. They function as shading channels, and should work in congruity with the shade of the light itself to accomplish the craved impact.Once you have got your types of lighting down, you'll have to consider where to place them. Here's an essential summary of lighting positions:Front - This is utilized for the most part for perceivability and shading impacts. Side - can be utilized to awesome impact to complement activity.Back - Additionally utilized for impact. This kind of lighting can make the dream of profundity on a phase, or notwithstanding to silhouette a man totally.
Specification and Price of 6m 40W Solar Street Lamp
Specification and Price of 6m 40W Solar Street Lamp
Specification and model of solar street lamp: 6m solar street lampOutput power of street lamp light source: 40WKey advantages of light source: no operation delayHeat removal method of light source: air convectionLamp port style: l7086Specification height of street lamp: 6m [M]General style of street lamp: tapered seamless steel pipeUpper and lower specifications of street lamp: 60mm / 132mmCantilever design optional: bow armPrice of solar street lamp: 680 yuanStreet lamp interval installation: 30m longStreet lamp installation scenario: rural roadsThe processing technology of street lamp shows that there is no burr, etcCommodity installation cost: 100 yuan per pieceThe 6m solar street lamps of our manufacturer have undergone rigorous quality inspection before leaving the factory. You can sign a quality agreement when purchasing goods. If the quality is unqualified, the full refund will be made. With the continuous development of high and new technology, the level of pavement lighting engineering is getting higher and higher. We can see that there are basically 30W solar street lamps, buried lamps, landscape lighting, lawn lamps, LED street lamps, solar energy street lamps, wind solar complementary power generation street lamps and street lamp poles on any kind of pavement, The various styles of pole lamps have produced a beautiful scenery on the road. Different street lamps have different equipment, and different solar street lamps have different prices!
Let There Be Light - the Hindu
Light is not just about energy. It provides us the means to reveal spaces and volumes and interact with our environment. There is an increasing interest in natural day lighting, a valuable resource available for free every day. The energy used by artificial lighting in buildings is a major part of the energy use in buildings and if this can be reduced, consequently the emissions of carbon dioxide and greenhouse gases can be reduced. This can have an important effect in reducing global warming. This will also assist us significantly in the battle to solve our energy crisis. One square foot of a roof glass for sunlight is as good as 6 sq. ft of a window. And a window to the south and west of a building in the southern latitudes of India can mean more light, and more heat, too, for it is on the sun's 'friendly axis'.Daylight can provide a welcome and dynamic contribution to the human experience in buildings and, can impact human performance. Most people appreciate daylight and also enjoy the outside view that windows provide. The therapeutic effect and the importance of access to sunlight is most noticeable when you are denied or deprived of its use.The first and most obvious thing to understand is that daylight is variable: it varies with the season of the year, the time of day, and the weather. A careful study of the plans related to energy-efficient day lighting design will indicate where sufficient daylight is available, and where it will need to be supplemented.A building's passive response to day lighting can enhance comfort and be cost-effective; the savings of course in energy and costs are obvious. The use of proper passive design systems ensures that you invite natural light pleasantly, while keeping heat of your home or workplace.The easiest and cheapest way to get natural light into your home is with windows. Appropriate selection of locally available materials with thermally insulated properties can keep the home cool too, reducing the consumption of energy significantly.There has to be enough light filtering in spaces that are common: corridors, pathways, walkways, basement stairways and such. Selection of colours that enliven walls and ceilings can make a subtle difference to the bounce you get of light in indoor spaces. Not just the design of individual buildings, the municipal rules of the land should set laws for setbacks between buildings. Where there are buildings jostling for space on a crowded street, rights of light have to be defined. It is important therefore to ensure that the profile of the building complies in all respects with the planning laws, and observes the right of the neighbour's light.There are some areas in buildings where daylight can never reach and artificial light will always be required. With technological advancement, at places where there are limitations for use of natural light, solar lights or sky tubes are excellent alternatives for maximizing daylight and the technology of the reflector and reflectance of the tubes makes the amount of oncoming light very usable. In addition, they are much easier to install than a skylight.Natural light is part of our biological needs. Intuitively, we prefer daylight to electric light. Spending at least four hours under the sun is vital for longevity and health, but that is a luxury lost for many urban millions.With properly installed and maintained day lighting systems, natural light can add to quality of health, productivity, and safety of building occupants. Natural light helps maintain good health and is proven to be curative. In office spaces, the pleasant environment created by natural light decreases stress levels for office workers. Productivity increases with improved health of workers; with better productivity comes financial benefits for employers. Students also perform better with natural light. Safety is increased with better lighting conditions. The use of day lighting decreases utility costs and improves the well-being of building occupants. Maximizing its usage will not only help you keep lights off during the day it also saves you money by the minute.The writer is Executive Chairman and Co-founder of BCIL ZED Homes.
Lighting Suggestions for Weeping Mulberry?
Lighting Suggestions for Weeping Mulberry?
If you've never done any landscape lighting, I have to warn you. It is addictive. And it might be hard to find just one light. They usually come in sets for homeowners.The trick between professional lighting and homeowner lighting is this; you never ever want to see the light bulb or fixture itself. No blinding lights. Your beautiful tree should be uplit with a spot light or two. From this position a spot light set behind the patch of Hosta? would work to hide the spot light. But if you walk to the front door? or come around on that walkway from the side of your home? More than likely to be blinded. It gets tricky to place the lights just right. Black matt spot lights with recessed bulbs is all I would use with a moon light or two.Your landscape professionally lighted becomes alive at night. Very different than in the day light. Stunning. You should call some landscape companies to give you a bid. You want a low voltage system added to your electrical system. A box should have room to add more lighting because all the clients who started with...8 lights was the minimum, sold with an upgradeable transformer and there was a time where anyone with electrical skills was able to do this install. Not anymore. Find a landscape company that has its own licensed low voltage electrician.Within a month, we timed it, all clients wanted more lights. Another 8 or 12 or 18...the only thing people would see are landscape features; the sweep of branches and bark, shadows, back lit, down lit or up lit. Spotting a light on the side of your home will make a black shadow of a tree in front. Moon lighting worked best for a patio situation. Let's talk about security. Those motion sensored blinding lights? The bad guy could stand outside of the circle of light and be invisible. Landscape lighting is more subtle and the ambient light off your tree, your hedge is plenty to light pathways and see bad guys sneaking around. Add gravel and barberry shrubs under windows and bad guys won't even bother.There are, 'dorky', lighting packages at home depot. Cheap. It would get you started and playing with lighting and figuring out how to hide those spot lights. Those 'fixtures' should be matt black with recessed bulbs. Low voltage will have wiring buried 6 inches deep. Make sure they bury the wiring 6 inches deep, no less than 4. Don't get tempted (best to talk to wife first) purchasing shiny brass pagodas and fixtures that look like earrings. Absolutely no pathway flying saucers. Pathway lights are for airport run ways. Can't tell I am a little opinionated? Grins. I am telling you the difference between an investment that will add to the value of your home and one that will be lost, forgotten and worse, tripped over. But when you see the power of landscape lighting, you will be smitten. Can't hurt to get some free bids. And get ideas. It will be an investment but pales with the investment you've already made in your landscape that right now gets turned off every night. People would leave their homes in the dark to go to work and it would be dark by the time they drove into their garages. Only neighbors would get a chance to see the landscapes...I wonder if they have wireless lighting now? Forget solar. Unless the lights aren't the solar absorber themselves. Like having blinding light bulbs everywhere. You want to make your landscape the light fixture.• Related QuestionsDo the mountains around this Norwegian valley act like a giant battery?The scientific literature has almost entirely ignored this theoryThe episode (9:54) doesn't present the battery theory as conclusive fact.It is just a theory. They still need to work out how the theory could cause the lights to hang in the air. But for the time being, its the best theory they've got.There are two facets of this that can be checked:Is this a real theory real scientists take seriously?This perspective letter published in a scientific journal reviews 3 explanations for the phenomenon. The third explanation matches the one given in the episode. A perspective letter is more like an opinion piece than a in depth scientific investigation. They typically go through an abbreviated peer review.Physicists have suggested few models to account for the HL phenomena. One possible explanation attributes the phenomena to an incompletely understood combustion process in the air involving clouds of dust from the valley floor containing scandium (Hauge, 2007, 2010). Another hypothesis suggests that HL are formed by a cluster of macroscopic Coulomb crystals in a dusty plasma produced by the ionization of air and dust by alpha particles during radon decay in the atmosphere (Paiva and Taft, 2010). The valley's shape, microclimate or unique geology might also act as a giant battery that powers the lights (Monari, 2013). Until recently, none of the hypothesis/models described above seems to account for all the observations of HL and the very high energy source generating HL remains completely unknown.The Monar 2013 report presents the giant battery hypothesis, and presents some data that is consistent with the hypothesis. This data is far from conclusive and the report makes clear that this is just a hypothesis. It was not published in a scientific journal and I have no evidence that it went through peer review. It has gotten almost no scientific attention; According to google scholar, the perspective letter quoted earlier is the only scientific source that cites this report.I do not see any evidence that this theory is taken seriously by the wider scientific community.Is it "the best theory they've got"?The perspective paper mentioned two other theories. Hauge proposed that burning scandium causes the lights. Paiva and Taft proposed that it is caused by a dusty plasma. Hauge 2007, is a "preliminary report" that does not appear to be published in a scientific journal. It presents a little bit of evidence that supports the possibility that burning scandium dust is causing the lights. Although it has been cited by 8 other papers, none of them give it more than a cursory mention. Hauge 2010, was published in a peer reviewed journal and has been cited by two articles other than the perspective letter. I don't take either article seriously. One is short, doesn't really explain its methods or data, and is published in a probably predatory journal. The other explains that an alien "exo-civilization" built a "stealth extraterrestrial visitation probe" that is causing the lights.Paiva and Taft are two scientists who have published extensively about the Hessdalen lights. They have proposed several physical models for how the lights occur (2010,2012,2011,2012,2011). These models discuss dusty plasma, and charged particles emitted from rocks that fracture as they thaw. Most of them are published in peer reviewed scientific journals. Most of them have gotten at least 1 citation. The scientific community appears to take Paiva and Taft far more seriously than Monar or Hauge.This could be because their theory correctly explains the evidence, or it could be because they know how to write papers that will get accepted, or both. Although their work has more acceptance than the other two theories, that is a pretty low bar.Speculation about the showI personally have a good scientific background; for most scientific papers I can understand a decent amount of what is being discussed. Paiva and Taft's papers go right over my head. If the people creating the show looked at their work, they probably decided it was too complicated and arcane to try to explain to their viewers------Can we generate enough electricity to light up street lights by means of a dynamo being rotated by car wheels?Is it possible?Most likely yes.But:What challenges would one be facing for such an idea or design?These are what I foresee as the biggest hurdles you'd have to overcome.Hurdle 1: The laws of thermodynamics, in particular the first and second law. The first law of thermodynamics states that energy cannot be created or destroyed. There's a caveat here in that energy can be converted to and from mass using Einstein's famous equation, but there aren't any current automotive applications of Einstein's equation so we may as well assume energy and mass aren't converted to each other.So whatever energy it takes to run the lights will have to be put in by any vehicles driving on our fictional energy converter. This wouldn't be a problem except for the second law of thermodynamics which states that the entropy of the universe is at best not increasing. This leads to the concept of efficiency. Not all the energy of the gasoline your car burns goes towards "useful" work. Most of it is lost as heat. In fact so much heat is created by your engine that engines have cooling systems designed just to keep it from melting itself. Common gasoline engines have typical efficiencies of around 35%. This is before any efficiency losses created by wind resistance or efficiency losses of converting the car's motion through the converter to the street lights. Typical power plants which operate in a different fashion reach efficiencies of 50% or higher. This means we would end up wasting a lot more energy by trying to power lights off of cars instead of off the grid. Note that this hurdle applies to many different kinds of energy harvesting methods, not just Hurdle #2: The way automobiles work. Cars drive by transmitting power/torque to their wheels, getting them to spin. The wheel then spins and hopefully doesn't have significant slippage with respect to the ground, transmitting a friction force which moves your car forward. We say your car moves forward but there's no reason why we can't say the ground is moving backwards. If the ground is fixed from point A (source) to point B (destination) it really doesn't matter because either point B is getting closer to us or we're getting closer to point B.However, if the ground is rotating like a giant treadmill, the wheels can be spinning and we'd be moving with respect to a point on the treadmill, but the same reference point will also be moving away from point B. At best the car is moving faster towards point B than the reference point on the treadmill is moving away from it, at worst the reference point is moving faster away than we're moving towards it. Either way we're straining the engine more and likely arriving at our destination later, if at all.Hurdle #3: Reliability. A giant spinning dynamo is most likely not going to be reliable. This is because the system is being exposed weather, constant pounding of traffic, etc. The system would also be new and complex, the two worst enemies of reliability. Power plants and the grid used to transmit electricity are also quite complex, but these have had decades of refinement and testing to produce highly reliable systems.Hurdle #4: Cost. The electrical grid and power plants aren't there just to power street lights. They power our homes and businesses, too. They can also use a variety of energy sources such as wind, solar, coal, natural gas, nuclear, hydroelectric, etc. Many of these energy sources are significantly cheaper or easier/cheaper to harvest in large scale. In many cases these facilities already exist. In the other cases I would argue that powering street lights are the least of your worries.Conclusion: I'm sure it's possible someone could design a system to do what you described, but it would almost certainly be highly impractical, unreliable, and expensive
How to Decide on the Best Solar Lights
How to Decide on the Best Solar Lights
Why Should I Buy solar lights?I need a cheap solar light that is much brighter than the conventional ones. A good solar light will last you a long time and it will last you a long time. There are many types of solar lights, some of which are LED light bulbs, but there are also some which are fluorescent light bulbs. They are all kind of different in style and they have their own advantages and disadvantages. The best solar lights can be purchased from various sources, so it is important to pick the best solar lights that can work for you.If you are buying solar lights then it is time to consider your options. If you are looking for a good way to get solar lights then there are some things you should look into. There are many types of solar lights and they can be found in different shapes and sizes. They can be made from several materials and can be used in various ways. They can be attached to any kind of surface, or they can be placed on the ground or in a yard. You can choose the type of solar lights you want and choose the best one for you.It is very easy to get solar lights in your home. Most people don't have much money to buy solar lights, so there is no point in buying them if you don't have enough money to buy them. There are lots of options out there, but they all come with some caveats. Some people choose to use solar lights because they think it will save their energy bills and keep their homes clean. Others choose to use solar lights because they think it will save their environment.When you are looking for a new home or solar lights, there are two main ways to look at it. One is to use a little more energy efficient lighting system. This will help you save money on your energy bills. Solar lights will reduce your need for incandescent lights and provide much needed light in the dark. A good solar light will not only make your home feel smaller but will also increase your home's efficiency. You will also be saving money on your electricity bills.How to Choose the Right solar lightsWhen it comes to choosing the right solar lights, you need to take into consideration what kind of energy is needed and what kind of heat sources are needed. The following articles will give you some good tips on how to choose the right solar lights. If you are interested in buying the right solar lights then check out these websites:'Top 10 Solar Lights That Will Save You Money' where the section focuses on 'Solar Fence Lights' could look like this 'If you want to buy the right solar lights then check out these sites:'The most important thing to consider is what kind of solar lights you want.When you have an event in your life, it is important to choose the right solar lights. If you are not careful about choosing the right solar lights then you will end up with bad lighting and bad days. The wrong solar lights can cause serious health problems. There are some other things that you can do to avoid these problems and make sure that you get the best quality solar lights at the best price. You should know that there are many different types of solar lights and they all have different functions.This is how a solar light works. The lights we use in our homes can be switched on or off as well as turned on and off. We can choose to turn on or off lights using a standard switch, but they are not always available. They can also be switched on manually by the user or through a control panel. Solar lights can also be used to generate light signals that indicate when to turn on or off lights and then turn on or off them automatically.With so many options, choosing the right solar lights is difficult. Some people think that they need to make a decision on their own but it is very hard to know how to decide on the right solar lights. The next step is to go through the basics of buying the right solar lights and deciding on the right solar lights. A good solar lights will last you a long time and can help you save money on your electricity bills. There are different types of solar lights and there are different types of solar lights. You can get a quote online from a reputable solar lights company.Features to Consider When Buying a solar lightsNo one knows the concept of solar lights, but people are already thinking about it. Most people think of solar lights as being something that they can use to create an image in the dark. However, there are other options that people are going to use as well. These options include using a sun screen or a windscreen. A solar light can be used to help illuminate the whole area and also to control the lighting of the room. It can also be used to control the entire street.Before you decide on buying a solar lights, it is important to make sure that you are choosing the right one for your needs. There are many types of solar lights and the most important thing to consider is the kind of solar lights you want. It is always best to check what kind of solar lights you want before you buy them. If you have already bought a solar lights, then you need to make sure that you are getting the best deal possible for the solar lights you want.Before you start looking at any of the different types of solar lights, make sure you know what they are. All you need to do is compare their features and find the one that suits your needs. If you can afford it, then you will be in good hands. For example, if you are buying a solar lights then you will be able to get a much better quality from it. This will help you decide what type of solar lights you want.The industry is still figuring out how to do all of this, but there are some really big companies out there that are getting into the market. These companies include Samsung, LG, Asus, Acer, Dell, HP, and Lenovo. If you have any questions about these companies then ask your question. They will provide you with all the information you need to know about these companies.
The Best Outdoor Solar Lights
Moreover, the lights have motion sensors that can detect people up to 26 feet and within an angle of 120 degrees. With an IP65 rating, it is extremely weather-resistant. This Aootek product also supports solar panels that are made of monocrystalline photovoltaic cells. All in all, Aootek's outdoor lights pack a punch that outdoes almost all other products.6 Best Solar Floating Pool Lights & Reviews ( Buyers Guide)The beauty of your swimming pool and party celebration will never get a vivid aura without colorful lights. Decorating solar lights can be your best lighting companion without electricity costs. Besides, the best solar floating pool lights enable you to organize your surroundings at ease. You do not have to worry about the installation and recharging. Solar floating lights can be used for multiple purposes, and they are the most durable on water lights for your swimming pool. In this writing, we present the best solar floating swimming pool lights along with their advantages and disadvantages. Besides, you will find a complete buyer's guide for solar pool lights that helps you to understand the key features of the best light. Finally, we will make a shortlist of the best products from this review list if you have difficulty selecting the perfect one based on your needs. Buyer's Guide: What to Look for in a Good Solar Floating Pool Light? As an energy-conscious person, you might search for the best efficient light that contains perfect specifications. But, if you do not have prior ideas about solar floating light, you can not purchase the best one. You have to compare the key features of the product to understand the hidden values. In general, a buyer's guide helps the consumers with specific information and suggestions for the perfect selection, Besides, the buyer's guide makes the consumer conscious about the significant features and their performance while using the device. So, let's explore the key features of solar floating pool lights before purchasing them. The size matters while selecting the best solar pool lights. A light with perfect shape and size increases the beauty of the pool. If you install an extra-large size light, the water will be covered with the device. It will reduce the beauty of the pool. On the contrary, a tiny light will never give you sufficient light, and you can not notice it from the poolside as you expect. So select the best size based on your swimming pool. Inefficient light can not create a vivid atmosphere for celebrating your parties and family time. Floating lights must have the best inflatable capacity to perform on the water. It will ensure the performance of the light. Colorful lights are suitable for indoor and outdoor usage. It is better to select a compatible light for multiple purposes. Most of the solar floating lights can perform in gardens, balconies, deck, yard, bedrooms and more. you should purchase a light with the versatile usage. It reduces the costs and allows you to install the same lights in different places. If you get multiple colors from a single light, why do you purchase several lights? The best solar pool light can change the color automatically and contains four to seven colors in a single device. For solar devices, the battery is very important. You are purchasing solar lights to decorate your pool at night. If the device does not have a perfect battery, it can not produce adequate lights. You have to concentrate on this matter. Here we present the top 6 solar floating pool lights and their overview. We find these products regarding their specification, features, and reviews from real users. Similarly, we analyze each product and compare it with the competitor to find the best result. It revealed the real factor of the device that will help you to realize the actual value with the money. In this list, we try to add the most efficient products with the help of the expert's opinion and our personal experience. Finally, we concentrate on the online and physical market research to understand the design and durability of the device. Let's explore. First, we have an attractive solar-powered floating light that comes with LED lights and an automatic color changing mode. This light has four colors, and the brightness is very engaging. With the ball shape lamp, it will easily mount on the pool or other water displays. This inflatable light has a perfect dimension of 14 inches that is suitable for a small and large swimming pool. You can use this light in any place. It might be on the water or the ground. Besides, you will get energy-saving and long-lasting lights with automatic solar charging capacity. After a single charge, this floating pool light will last for 8 hours. It is enough for a single night lighting. The powerful battery and solar panel make this possible. Similarly, it has IP68 waterproof technology that allows you to run the light in any weather condition. If you are looking for a floating light that can be used for multiple purposes and consumes the lowest energy, these solar inflatable lights are best for you. This will be a beautiful addition to your pool and easy to use for every purpose. With the automatic color changing mode, the light will change the color and create an excellent atmosphere without electricity cost. You can use this light for the swimming pool, balcony, garden, entrance, and other water displays. By using the hanging hook, you can easily hang this beautiful color source wherever you want. It is entirely hassle-free, and during the day, the device will get charged automatically from the sun. In the evening, it will be turned on automatically, and you do not have to worry about charging and powering. Waterproof technology allows you to get amazing lighting, even in the rain. It will create a reflecting and colorful lighting mode outside while raining. Next, we present the Floating Pool Light Solar (15 inches), which comes with a large globe shape of 15 inches. The same as Floating Pool Lights Inflatable we have reviewed above, this floating light has an automatic color changing mode. It will change the color every 15 seconds. The dimension of this solar-powered floating light is 9.84 x 5.7 x 1.69 inches. New to solar energy? Do you want to know how solar energy works? Read our Solar 101 to learn more about solar energy. Its dynamic shape will enhance beauty by producing colorful light. Besides, high-quality materials make the device lightweight, and it is only 1.25 pounds. One AA battery is included with the light, and it will run the device for more than six hours after a single charge. The light is entirely waterproof, and IP68 waterproof technology enables you to run the floating light in any weather condition. This cost-effective light is perfect for multiple lighting and decorations. Similarly, it is eco-friendly and has the power to produce soft colorful light. This is an ideal solar floating light that is suitable for swimming pools, decks, gardens, lawns, and more. It has a globe shape that will increase the beauty of the place. With this light, you will get the exact color that is needed for the pool. Besides, the light has outstanding color and a gorgeous outlook. The light is easily inflatable and pretty simple to use and store. You have to set the light on the pool or hang it on the balcony. You can also decorate your wedding, birthday, and family parties with this excellent light. If you have a restaurant or party center, you can purchase this colorful light for engaging visitors. With the color changing mode, you will get multiple colors from a single light. If you install several lights, you can create a vivid lighting display on the pool. The main problem is that you have to purchase at least two lights for getting the minimum colorful lighting. Now, we have the HAPIKAY Solar Floating Pool Lights that come with seven colors, and the lights will change the color automatically. It is inflatable, and you can also hang this light when thinking about other places. This solar-powered light will change the color every 25 seconds and create a vivid atmosphere. With the powerful battery, the light will provide you with colorful output for 8 hours after a single charge. Besides, the 14 inches size is perfect for multiple decorative purposes. You will get enough brightness, even in the extreme darkness. The light has IP68 waterproof technology that will enable you to run the device in any weather condition. The small and compact shape allows you to carry the light easily, and you can install this portable light within a few seconds. You can return this light within 30 days if you find any difficulty. This is another best option for decorating your swimming pool or yard with colorful lights. You can use these inflatable lights for the swimming pool, backyard, patio, or any room in the house. The lights are so cool and produce a colorful aura without electricity. With the automatic color changing mode, you will get the best colors for creating a unique atmosphere. It has seven colors, including white, pink, red, green, blue, aqua, lime. You can use these lights as a gift to your dearest one. If you have a plan to celebrate your next birthday, anniversary, or wedding party with colorful lights, this will be the best option for you. Besides, it does not require any installation and comes with an instant running facility. You have to put the light, and it will get charged automatically from the sun during the day. The portable feature enables you to bring this light when planning an outdoor picnic or camping. The MUCH Solar Floating Pool Lights come with a ball shape and vibrant color changing mode. These lights can produce colorful lights with seven colors. With the perfect shape this light will enable you to carry the device anywhere. You can easily install this inflatable light on the swimming pool. It is completely d0-it-yourself light and does not require any installation cost. The lightweight design makes the device easy to float and hang. You can use the light a hassle-free way. With waterproof technology, the light can run in any weather condition. The powerful battery of this device will serve you for 8 hours after a single charge. Besides, you will get a 30 days easy return in case of damage or broken lights. One year warranty will ensure the after-sales service for the consumers. This light will be your best decorative companion at night. You will get a cost-effective lighting solution for your home and outdoors. The light is suitable for the swimming pool, fountain, garden, living room, bedroom, balcony, and more. With the automatic color changing option, you will get multiple colors from this light, including pink, red, purple, blue, aqua, and green lime. If you have a beautiful garden with several trees and flowers, it is the best lighting option for you. The device will change the atmosphere of the garden. The light runs with solar power and does not require electricity connection. You are going to save on lighting costs and install a vivid light at an affordable price. Besides, you can bring this light for the next camping or outdoor family picnic to decorate the place, and you will feel the colorful light in nature. During the day, this floating light will get charged automatically and turn on in the evening. The Cootway Floating Pool Light Inflatable comes with four colors, and it will change the color automatically after 25 seconds. This solar-powered device will charge the battery during the day and run for 8 hours after a single charge. The light has an efficient solar panel and a powerful battery. Waterproof technology makes the light suitable for a swimming pool, and you can run the light in heavy rain. Are you planning to buy solar panels to power your house? Read our Solar Panel Buying Guide first before purchasing. It contains an alternative power source with a USB port. When you use this light indoor, the USB port will get the power from the grid. This light is made with durable materials, and you can carry it wherever you want. You will get one year of warranty and 30 days easy return that ensures the customer service in case of any damage. Overview: Spec 1: Solar powered Spec 2: USB for alternative charging Spec 3: Automatic charging from the sun Spec 4: 14 inches Spec 5: 4 colors Spec 6: Floatable Spec 7: 8.5 x 8.2 x 4.9 inches Spec 8: 1.95 pounds Spec 9: Waterproof Spec 10: Warranty If you are looking for a vivid lighting solution for your pool parties with decorative lights, this light is the best one in the category. This floatable light enables you to get multiple colors without electricity. You will get a hassle-free lighting solution with zero maintenance. With the USB charging port, you can use the light indoor, and the solar panel will charge the device during outdoor use. This light is perfect as a gift, and you can surprise your friends and family by giving the colorful gift. On the contrary, if you are an adventure lover, this light will help you to decorate your camp and outdoor parties without grid connectivity. You can run this light with your power bank too. For your next wedding ceremony or birthday party, you should purchase this light to attract the guests and create vivid surroundings at night. Finally, we present an elegant solar inflatable light that comes with star shape design and multiple colors. This light will change the color automatically and create a vivid aura in the place. The waterproof technology allows you to use the light wherever you want. It requires sunlight to charge and suitable for every place under the sun. During the day, the light will get power from the sun, and after a single charge, it will run for 8 to 10 hours. It contains high-quality materials and is very easy to carry. You can take this light in your bag or car trunk while visiting other places. The hanging hook of the light allows you to install it indoors for increasing the beauty of your room. With the manufacturer's warranty, you will get after-sales service in case of any problem. This light is suitable for decorating your garden, pool, bedroom, yard, deck, and more. It has an efficient solar panel to charge the battery quickly. Besides, the light is best in its category and comes with the value of the money. The star shape design presents your personality and enables you to get a unique lighting solution. By using the color-changing mode, the light will provide you multiple colors from a single device. You can use this light for party decoration, including wedding, birthday, anniversary, and more. The most important part of the light is that it does not require electricity and you will get an affordable solution. The light can change the surroundings of your poolside and backyard. Your leisure time will be vivid and colorful. As an adventure lover, you can bring this light for camping and fishing to get colorful light in nature. Finally, you got the reviews of the top 6 solar floating lights with their pros and cons. Now, you can select the best one according to your needs. But, sometimes it is difficult to find the best one among several lights. You might get confused while selecting the solar floating lights. You can easily overcome this situation with our shortlist. We prepare this list by comparing all the products of the review section. If you are looking for colorful solar floating lights, the Floating Pool Lights Inflatable is perfect for you. On the contrary, the (Star)Cootway Floating Pool Solar Lights have a unique star shape that is ideal for creative pool decoration.
Can Solar Lights Be Charged From Indoor Light Or Has to Be Sunlight?
Can Solar Lights Be Charged From Indoor Light Or Has to Be Sunlight?
They can be charged indoors but need to be placed in direct bright light (such as under the edge of a end table lamp) in order to charge at a decent rate. It will still take longer than in the bright sun though. Edit: If it is the kind that just uses rechargeable AA batteries or similar then they can also be charged in a regular charger outside of the light.1. my goldfish always sits at the bottom of the tank.. he is alive because does move but sits for hours?Your tank is quite small for your gold fish, however he should be a little more active. Be sure you do not have a heater and that the water temps are between 55-65. Warm water will make your gold fish lethargic. Also, gold fish require lots of dissolved oxygen. This can only enter your tank by movement of water. ie filters, waves, waterfalls powerheads etc. Try lowering your water level about 1/2 -1 inch and let the filter dump water into your tank. This will add the DO2 he needs. Also, if the water is too warm, add a few ice cubes and let them melt. This will help with him being lethargic. Once he becomes more active, gold fish love to bumb things on the surface. A plastic ball, large enough that he cannot swallow it on the surface works wonders for their attention span. I use floating orb solar lights in my outside ponds to entertain the fish. Sounds dumb, but they push them all over the pond, day and nigh.2. how can solar garden light solar lights be rejuvenated ... have tried cleaning the panels with negative result?This Site Might Help You. RE: how can solar garden light solar lights be rejuvenated ... have tried cleaning the panels with negative result? set of garden lights along path are, or at least were, solar powered but no longer light up even after sunniest of days ...also butterflies that light up and change colours solar powered but no longer working... I have carefully cleaned the solar panels with damp cloth but no success . any...3. do you care about climate change enough to do something about it?yes. i have been using compact flourescent light bulbs (cfls), looking for a hybrid, recycling, using solar lights, and so on. it makes sense. anyone who cares about the environment should help stop global warming. global warming is causing animals to become extinct. if we help stop global warming animal populations will grow back4. how are you helping the environment?I usually recycle the waste material in my house. Using solar lights in my garden. I usually use bicycle to go nearby5. Why do my solar Lights turn off in the middle of the night instead of when its dawn?It's possible the batteries are not being charged sufficiently. Make sure you follow the directions you got with the lights. I know mine had to be charged for a certain amount of time before they would hold a good charge. Make sure you have removed any plastic filament that may be on the panels. It may be blocking some of the suns rays. Just a guess. Things I would look for.6. Do solar lights work in colder cloudy climates?yes! but not as bright as it would if it was sunny all the time!7. Best Outdoor Solar Lights 2019 - Reviews & Buying GuideWith the availability of solar-powered outdoor lights on the market today, it's a daunting task to find the best deal. You need to consider your exact needs and expectations to make sure you are choosing the right product. So what are the best outdoor solar lights you can buy to meet your outdoor lighting requirements? How to Choose the Best Outdoor Solar Lights If you are searching the market to find good quality outdoor solar light, you should first understand that these products have been improved to provide long-lasting performance. One best way to determine their usefulness is by looking at their features and specifications. You can use outdoor solar lights in lighting your garden, pathways, lining pond or pool, and in home security. Here are some helpful tips for choosing the best solar-powered outdoor light: Check the lighting fixtures. It should include the solar cell, Ni-Cad rechargeable battery, LED light, and photocell sensor. The overall design should work simply for any lighting purposes you have at home. Lighting units have solar panels attached to them. With a single charge, solar lights can last for hours depending on the solar energy it received throughout the day. Your location, season, and weather condition will inevitably affect the charging time of your solar lights. Typical solar lights have a charging period of 8 to 10 hours. In summer, expect for your batteries to charge faster than the average time. Outdoor solar lights are designed with LED lights that can function for 100,000 hours. However, these lights are irreplaceable. So be sure to get high-quality solar lights if you want them to last longer. Proper maintenance is required for the Ni-Cad batteries to last for up to 2 years. Deep charging can help you lengthen that period while taking advantage of brighter solar lights outdoors. Outdoor lights like the solar-powered types do not need electrical wiring and other power sources. So if you will use it for aesthetics such as lighting your pool or garden, they are the perfect fit. The following are the main advantages of using the best outdoor solar lights on the market today: Solar-powered lights are so easy to install and use. They are also environment-friendly products since they are charged for the use of sunlight. Since solar lights do not require electrical power; these products are more affordable than other types of outdoor lighting systems. Another great benefit is the safety and security of installing solar lights outside your home. There are no power chords to threaten your family's lives while spending time in the garden or the pool. Solar lights are the ultimate solution for lighting ponds, swimming pools, and another area in your house. By choosing the best solar-powered outdoor lights, you can benefit from their effectiveness, brightness, and excellent control. With their flexibility, you can use them in your lighting needs that do not require electricity. Solar lamps can be as bright as electrically powered landscape lights if you correctly install them. Also, make sure the battery can be charged to a higher voltage for more extended functionality. Advantages and Benefits of Solar Lights Outdoor lights like the solar-powered types do not need electrical wiring and other power sources. So if you will use it for aesthetics such as lighting your pool or garden, they are the perfect fit. The following are the main advantages of using the best outdoor solar lights on the market today: Solar-powered lights are so easy to install and use. They are also environment-friendly products since they are charged for the use of sunlight. Since solar lights do not require electrical power; these products are more affordable than other types of outdoor lighting systems. Another great benefit is the safety and security of installing solar lights outside your home. There are no power chords to threaten your family's lives while spending time in the garden or the pool. Solar lights are the ultimate solution for lighting ponds, swimming pools, and another area in your house. By choosing the best solar-powered outdoor lights, you can benefit from their effectiveness, brightness, and excellent control. With their flexibility, you can use them in your lighting needs that do not require electricity. Solar lamps can be as bright as electrically powered landscape lights if you correctly install them. Also, make sure the battery can be charged to a higher voltage for more extended functionality. Check the lighting fixtures. It should include the solar cell, Ni-Cad rechargeable battery, LED light, and photocell sensor. The overall design should work simply for any lighting purposes you have at home. Lighting units have solar panels attached to them. With a single charge, solar lights can last for hours depending on the solar energy it received throughout the day. Your location, season, and weather condition will inevitably affect the charging time of your solar lights. Typical solar lights have a charging period of 8 to 10 hours. In summer, expect for your batteries to charge faster than the average time. Outdoor solar lights are designed with LED lights that can function for 100,000 hours. However, these lights are irreplaceable. So be sure to get high-quality solar lights if you want them to last longer. Proper maintenance is required for the Ni-Cad batteries to last for up to 2 years. Deep charging can help you lengthen that period while taking advantage of brighter solar lights outdoors. Getting the best outdoor solar light is a great investment. High-quality lighting setup can save you time, money, and effort. So the best outdoor solar-powered outdoor light is the URPOWER 2-in-1 Waterproof 4 LED Solar Spotlight. With all its excellent features and benefits, it's the perfect choice for more extended functionality and flexibility. With plenty of options to choose from when it comes to solar lighting products, it's not easy to find the right one. So this review is created to help you make an informed decision. If you choose URPOWER LED solar spotlight, it's like you've won the lottery because of its ultra bright LEDs that can perfectly illuminate your garden, swimming pool, patio, and other areas that you want to light up. Conclusion Getting the best outdoor solar light is a great investment. High-quality lighting setup can save you time, money, and effort. So the best outdoor solar-powered outdoor light is the URPOWER 2-in-1 Waterproof 4 LED Solar Spotlight. With all its excellent features and benefits, it's the perfect choice for more extended functionality and flexibility. With plenty of options to choose from when it comes to solar lighting products, it's not easy to find the right one. So this review is created to help you make an informed decision. If you choose URPOWER LED solar spotlight, it's like you've won the lottery because of its ultra bright LEDs that can perfectly illuminate your garden, swimming pool, patio, and other areas that you want to light up.
Solar Street Light All in One Street Light Made By
products & solutions let the green energy illuminate the future. renewable energy; stand-by energy; products; solar pv modules; grid-tied solar pv systems; new solar lamp integrative led light solar street lamp and outdoor lighting; solar system for telecom equipment; solar system for oil & gas sector; explore more. products; dc-dc converter; ac ups systems; dc rectifierI have a sodium vapor lamp on an outdoor light and it goes out when the door is shut is this a bulb problem?Probably a switch or loose connection problem, the arc should not extinguish when shakenHow does an outdoor light sensitive lamp post work and how do you troubleshoot one that flickers on and off?Same as previous answer or the sensor itself could be bad as well2 OutDoor Light Wiring Questions Wire coming thru wall to outside has 2 white wires. New fixture has 3 wires?you actually need a volt meter to test between either wire and the earth on the outside of your home...the one that reads 120 volts is the hot line mark this one with a black marker or wrap black tape around it....then hook black to black and connect the bare ground wire to the box the lights mount on .I just installed at 13 watt Compact Floresent Outdoor light, how long will bulb last.?Fluorescents do not like to go on and off allot. at the end of the bulb is a filament just like on an incandescent that ionizes the mercury in the bulb. Leaving a fluorescent on will make it last longer. generally, these small screw in fluorescent last 8 - 10 times longerLinking nighttime outdoor lighting attributes to pedestrians' feeling of safety: An interactive survey approachCitation: Portnov BA, Saad R, Trop T, Kliger D, Svechkina A (2020) Linking nighttime outdoor lighting attributes to pedestrians' feeling of safety: An interactive survey approach. PLoS ONE 15(11): e0242172. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Data Availability: The study was founded by the Israel Science Foundation, which, along with the authors, holds explicit rights over the data collected. As the data used in the analysis contains information on individuals, as well exact coordinates of the locations in which the assessments were performed, the information is sensitive and cannot be shared without the Foundation's consent. However, other researchers may send requests for a de-identified data set directly to the Israel Science Foundation (). Funding: This research was supported by the Israel Science Foundation (Grant number 400/18). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Competing interests: The authors have declared that no competing interests exist. Public space lighting (PSL) is an important component of the urban environment and has a major contribution to the pedestrians' overall feeling of safety (FoS) and comfort after natural dark -. Effectively, PSL is characterized by several attributes-illuminance, light color temperature, uniformity and glare ,-each of which may influence FoS, as well as energy consumption -, and human health , . PSL is currently designed according to international, national or local standards, such as EN 13201 . However, since the association between the above-mentioned lighting attributes and pedestrians' FoS has not been sufficiently studied , , it is not clear enough how well do the abovementioned standards, albeit technically efficient, contribute to FoS. Moreover, human perceptions of PSL attributes may be influenced by socio-demographic characteristics and may vary according to individual, locational, environmental and temporal circumstances. Therefore, an empirical model that links lighting attributes to FoS and considers various contextual factors is currently lacking. The present study attempts to fill this knowledge gap by developing a PSL-FoS model that links illumination, light color temperature, uniformity and glare values with FoS, while controlling for individual, locational, environmental and temporal factors. Such a model may help to adapt PSL to various settings affecting FoS, and thus may contribute to increased urban residents' satisfaction and wellbeing, while reducing health and ecological risks, and increasing energy efficiency. Several studies have looked into the factors affecting the perceived quality of nighttime illumination by pedestrians , 13-. However, most of these studies were performed in laboratory conditions, which cannot realistically reflect the complexity of outdoor environmental factors (e.g., time, weather, vegetation density and terrain), thus potentially causing biases in the information collected. Studies focusing on outdoor lighting constitute a distinct strand of research , 12, 25, , but they are relatively scarce and entail various limitations. Most of these studies are based on "self-report" questionnaires, which are subjects to various biases and limitations, such as inefficient management of information on measurement time and location during the assessments . Using "paper & pencil" technique to record PSL assessments outdoor after-dark may also pose difficulties, especially to the elderly and visually impaired . Consequently, some respondents may prefer to record their assessments later on, in better visual conditions, which may introduce uncontrolled errors, resulting from memory limitations . Another bias may occur due to insufficient guidance to find the exact location of the designated assessment points. A significant bias may also result from having company during the assessment, such as in the studies of Kelly et al. and Wu , where observers were sent to perform FoS assessments in couples or accompanied by research assistants. In a recent study, Fotios & Johansson examined how pedestrians appraise others' intentions in different outdoor settings. The researchers conclude that as long as a person can identify other pedestrians' faces, PSL is sufficient. Furthermore, the study in question was performed in a simulated built environment, and involved a relatively small number of subjects, which limits its generality. To sum up, we should remark that previous studies that explored potential associations between artificial lighting and FoS have had several limitations. First and foremost, most of such studies were carried out in laboratory conditions . Second, most of them used "paper & pencil" self-administered questionnaires, which entail well-known drawbacks, such as inefficient management of important information in a timely manner . Third, most previous studies were based on a relatively small number of participants , which substantially limits their generality. Finally, none of the studies carried out to date attempted to link different PSL attributes (especially light color temperature) with FoS, while controlling for individual, locational, environmental and temporal factors. The study, which results are described in the rest of this paper, attempts to address these limitations by exploring how the abovementioned PSL attributes-illumination, light color temperature, uniformity and glare-affect pedestrians' FoS in different contextual settings. The multivariate analysis of the recorded data revealed several important findings. First, it was found that locational, socio-demographic, temporal and environmental factors have a significant effect on FoS. Therefore, universal lighting standards cannot be suitable to maintain the desired FoS in all urban areas. The analysis also shows that the minimal levels of illumination required for achieving the same level of FoS differ across cities, being higher in the inland arid city of Beersheba in compare to the coastal cities of Haifa and Tel Aviv-Yafo. This finding reconfirms results reported by Svechkina et al , which showed that residents of coastal areas, with often clouded skies and denser vegetation, may be satisfied with lower illumination intensity, in compare to residents of inland arid areas, characterized by stronger daytime lights and less light-obscuring vegetation. Another interesting result stemming from the analysis is that lights perceived as warm tend to generate a better FoS than colder lights, given the same level of illumination. This finding may guide future illumination polices aimed at reducing unnecessary energy waste and preserving a cleaner urban environment. Generally, our findings are in line with the results of Rahm , who demonstrates that PSL, along with individual and environmental factors, have a significant impact on pedestrians' FoS. Nevertheless, the results of the current study are novel in several respects. First and foremost, improving pedestrians' FoS can be reached either by switching the light color temperature from cold to warm, or, alternatively, by increasing illumination. The former approach is less energy consuming and may result in substantial economic and environmental benefits. Second, locational factors (such as different cities and neighborhoods), as well as temporal factors (such as hour of the evening and month of the measurements), which were not assessed in previous studies, were found in the present study to have a statistically significant effect on FoS. It is important to note that in this study, the predicted FoS was linked to assessed PSL attributes, while, alternatively, the level of FoS could potentially be linked to instrumental measurements. Although both approaches-that is, individual assessments vs. instrumental measurements of PSL attributes-have their own merits, in the present study, we preferred to use the former assessment type. Our main reasoning is that people effectively link FoS to their assessment of lighting attributes, not to instrumental measurements, which they are unable to perform. Lastly, we note that this study uses the standard ordered logistic model, which, at least in theory, may lead to erroneous conclusions that some explanatory variables are less significant than they actually are (false negative conclusions). However, since we have found significant effects, the issue is not major and the identified significance levels we have found may be viewed as a lower bound of the true significance. Future studies may consider the use of generalized ordered logistic models -, to reduce this concern. An explanatory model linking FoS with different PSL attributes, along with controlling for individual, locational, environmental and temporal factors, is estimated and reported in this study. To estimate this model, 380 observers were asked to assess PSL attributes in different urban settings during different hours of the evening, as well as to evaluate their perception of FoS associated herewith. For this purpose, a specially designed cellular phone application, CityLightsTM, which represents a novel interactive real-time methodological approach, was designed and employed. This app provides an efficient alternative to the "paper & pencil" questionnaires, commonly used to record observations made during an outdoor experience. Based on cloud technology and GPS, the app enables pre-authorized observers to record their assessments along with temporal and geographic information, while preventing observers from deviating too far from pre-determined reporting points. The app also prevents the same observer to enter the same assessment point more than once, and blocks the use of the app before the natural dark or by unauthorized people. In this manner, the app ensures the accuracy and integrity of assessments. The present study is the second in a series of planned studies, carried as part of a large-scale research project, funded by the Israel Science Foundation. The project aims to model the perceived quality of PSL in urban areas by using an interactive user-oriented approach. The first paper in this sequence aimed to identify only the level of illumination required by pedestrians to feel safe while walking through the streets at night. Concurrently, the present study links different PSL attributes (illumination, light color temperature, uniformity and glare) to FoS, while controlling for individual, locational, environmental and temporal factors. The study was carried out in three large cities in Israel-Tel Aviv-Yafo, Haifa and Beersheba,-along pre-defined routes in 10 different neighborhoods (three-to-four neighborhoods in each city). A representative sample of participants used the CityLightsTM app to report their assessments from 257 pre-designated points, yielding altogether 25,940 individual valid records, which account for different PSL attributes. The results of this study hold a potential for improving pedestrians' FoS through better design of PSL by soliciting interactive responses from local residents and adjusting PSL attributes to their needs. Such a user-oriented approach allows to receive real-time feedback and may thus elevate PSL systems to a new level of interactivity and intelligence. Findings of the study may also guide future PSL polices aiming at increasing energy efficiency and reducing health risks to humans and ecosystems. This goal can be achieved by adjusting not only illumination intensity, but also light color temperature, to the desired levels of FoS, concomitant with desired goals. By venue of this, the results presented in this paper can be of interest for urban planners, environmental law enforcement authorities and decision-makers in local municipalities. In particular, following the results presented in this paper, PSL design for desired FoS can enable temporal and locational variations of illumination intensity and light color temperature and their locational variation, to reflect population makeup and building patterns in different neighborhoods and in different cities, thus helping to achieve a desired level of FoS. In particular, study results may encourage PSL designers to use warmer light, which can generate higher FoS for the same level of illumination. Applying just this strategy may decrease PSL-associated costs, in compare to those generated by the commonly used cold lights. Furthermore, as warmer lights are associated with higher FoS, using such lights may compensate for a reasonable reduction in required illuminance, without compromising FoS. The model estimated and reported in this paper can help to estimate this possible tradeoff between required illumination level and light color temperature for any desired level of FoS. The study findings may guide decision-makers towards improving new urban design and street retrofit projects. For instance, according to our findings, to achieve acceptable FoS levels, street lighting (SL) designers should focus on three main factors-illuminance, uniformity and light color temperature. In doing so, SL designers should keep in mind that, according to the study findings, urban residents appear to prefer warmer lights, which make them feel safer, in compare to cooler (i.e., bluer) lights. It is also important to keep in mind, that illumination levels should reflect contextual settings, considering that residents of cities, in which daytime radiance levels are high, may require more nighttime illumination to feel sufficiently safe after natural dark. As the results of the present study also indicates, in designing PSL installations, planners should account for the demographics of potential users, such as age and gender, which were found in this study, along with the environmental characteristics of different urban settings, which appear to significantly affect FoS perceptions. Temporal factors should also be taken into account. For instance, PSL level should be designed to enable increased intensity in illumination or changing light color temperature towards warm after 22:00, in order to maintain the same level of FoS. Thus, the study may contribute to optimizing PSL standards, which are presently mostly geared towards road traffic rather than to pedestrians' needs. Several interesting topics, which were beyond the scope of the present article, can be addressed in future studies. Two of them hold promising potential to quantify energy savings: the relation between FoS assessments and PSL instrumental measurements, and the potential linkage between illumination intensity and color temperature. Future studies may also increase the FoS-PSL model's validity and credibility by using means, such as a larger number of observers in each neighborhood, additional neighborhoods in each city, additional cities, more diverse urban settings, and various socio-demographic and cultural conditions. Another important future direction for scholarly enquiry is interactions between different FoS predictors, such as e.g., age and gender, and their combined effects of FoS.
Split-type Solar Street Light System Design - Lighting
The Split-type solar street light is composed of the solar panels (including bracket), lamp head, control box (with the controller, battery, etc.) and lamp pole, foundation, etc. Split-type Solar street lamps generally form their own power supply system and are not connected with the grid network. There are two kinds of solar street lamp system: 12V and 24V. Solar cells convert solar energy into electricity. There are three kinds of more practical solar cells: monocrystalline silicon, polycrystalline silicon, and amorphous silicon. 1) Monocrystalline silicon solar cell performance parameters are relatively stable. It is suitable for use in southern areas where there are more rainy days and less sunlight; 2) Polycrystalline silicon solar cell production process is relatively simple, the price is lower than monocrystalline silicon. It is suitable for use in the East and west areas with sufficient sunlight and good sunshine; 3) Amorphous silicon solar cells have low requirements for sunlight conditions and are suitable for outdoor areas with insufficient sunlight. The working voltage of the solar cell is about 1.5 times the battery voltage, which can guarantee the normal charging of the battery. 8-9v is required for charging 6V battery For solar cells, 15-18v solar cells are needed to charge 12V batteries. It needs a 33-36v solar cell to charge a 24V battery. The output power per unit area of the solar cells is about 127wp / m2. Solar cells are generally composed of multiple solar cells in series, and their capacity depends on the total consumption of lighting sources and transmission components. Power and local solar radiation. The output power of solar cell should be more than 3-5 times of the light source power: when the light is abundant and the lamp is on The short sunshine area is more than (3-4) times, and vice versa. The output power WP of the solar cell is the 10L standard defined by the European Commission under the standard sunlight conditions, with the radiation intensity of 1000W / m2, The output power of solar cells at atmospheric quality AM1.5 and cell temperature 252c. The output power of the same solar cell is different at different times and different places. The so-called standard conditions are close to the sunshine conditions around noon on a sunny day. Table 1 sunshine conditions in different regions of China Generally, Split-type solar street light pole is more than 5m, with a high center of gravity. Most of the solar panels are hanging type, in order to enhance the wind resistance of the whole set of equipment, generally Select the component power required by the composition of multiple solar panels. Table-3 annual average sunshine time and optimal installation angle of major cities in China The battery stores the power generated by the solar panel when it is illuminated, and then releases it when it needs lighting at night. The Split-type solar street light system with battery is mainly discussed 1) Lead-acid (CS) battery: suitable for low- temperature high rate discharge, low specific energy, most of the current Split-type solar street light. Maintenance- free sealing,The price is low. Pay attention to prevent lead-acid pollution, which should be phased out. At present, lead-acid maintenance-free battery, ordinary lead-acid battery and alkaline nickel-cadmium battery are used less and less due to environmental protection and volume reasons. People tend to use more compact design lithium battery, especially the stable and long-life lithium iron phosphate battery. The capacity of the battery is too small to meet the needs of lighting at night, if the capacity is too large, the battery is always in a state of power loss, which affects the battery life, It also causes waste. The ratio of battery capacity (ah) to load capacity (ah) should be more than 3-6 times: in areas with less days of continuous rainy days, it should be more than 3-4 times It is 5-6 times more than that in rainy days. When connecting in parallel, the unbalanced effect of each cell should be considered. The number of parallel groups should not exceed The operation of solar street lamp is controlled by controller. Most controllers realize intelligent control. The controller shall have the following functions: Light control, time control, temperature control and other functions are available. With dimming (or midnight lights) function Limit the charging and discharging conditions of the battery to extend its service life: Display the working status of main components of solar street lamp: battery, solar cell, LED lamp, etc. The solar cell angle inclination refers to the angle between the solar panel plane to the horizontal ground. The inclination angle of solar cell module (which refers to the angle between the plane of solar cell and the ground plane) has been discussed in many technical circles. Tilt angle according to location. Set (latitude, etc.) to determine; the front of the solar panel is facing the sun (or South slightly West), and the inclination angle is consistent with the local latitude. If conditions permit· The tilt angle of solar panel can be adjusted according to the season. Refer to "table-3" for the installation angle of solar cells in major cities in China. According to the maximum wind power, the wind resistance design of olar street lamp is carried out: Table 4 corresponding relationship between wind force and wind speed There are more typhoons in the south of China. The solar street lamp pole should be able to resist at least grade 12 typhoons, and most areas in the North should be able to resist grade 10 gales. 1) Solar module: the manufacturer shall ensure that it can withstand the local wind speed without damage, with the emphasis on the connection between the battery module bracket and the light pole. 2) Lighting pole and foundation; wind resistance design of street lamp pole and foundation and height, area, inclination angle, pole structure, local maximum wind speed, etc. of battery board Relevant, the calculation and design shall be carried out by the lamp pole manufacturer or structural discipline to ensure the stability of the Split-type solar street light pole at the maximum wind speed. There are two forms of light source and solar energy system: 1) Solar powered HID lamp electronic ballast (or trigger, the same below). )In fact, it is a DC / AC high-value converter. Therefore, the Split-type solar street lighting system generally does not need additional DC / AC inverter to reduce the circuit loss. This form is suitable for the new solar street lamp project. 2) Equipped with traditional HID lamp electronic ballast: connected to AC220 mains power supply. Its electronic ballast is essentially AC / DC / AC high-frequency converter. If it is connected with solar energy system, DC / AC small power inverter shall be added between battery and hid lamp electronic ballast. This form is suitable for street lamp reconstruction. Solar powered street light does not need additional DC / AC inverter to reduce the circuit loss too, it allows up to 65% energy savings than conventional solar street light. Application: low power solar LED lamps are used in residential or commercial areas, such as 5W / 10W / 15W / 25W / 30W, etc. High power solar street lamps are generally used in industrial parks and road lighting, such as 40W / 60W / 80W / 100W / 120W. The solar street lamp generally uses dcl2v or DC24V. It is a safe voltage and does not do electrical protection grounding 1) Street lamps and solar panels shall not be used as lightning arresters; 2) Use metal lamp post as lightning arrester and downlead: 3) When the reinforcement cage of street lamp foundation is below -0.50m and the surface area of reinforcement is more than 0.37m2, it can be used as lightning protection grounding body. Otherwise, the artificial grounding electrode shall be added, with the grounding resistance ≤ 10 Ω. If necessary, connect the grounding body. The grounding method is the same as that of general street lamp 4) TVs (transient voltage suppression) lightning protection is set in the street lamp controller Split LED solar street lights are to be installed on a pavement in Shanghai. The lamp is 5 meters high, the street lamp input voltage is 24V, the power is 70W, the work is 8.5h every day, to ensure the continuous rainy days 7 days to provide lighting. 1.05 is the comprehensive loss coefficient of the solar cell module system, and o. 85 is the charging efficiency of the battery. Choose 2pcs Pm=135W solar panels in parallel. The best working voltage is 34.8V. Optimal operating current 3.88A. The component size is 800*1580*50mm Select the intelligent controller. According to the requirements of Shanghai street lamp system, adjust the controller parameters and protect the street lamp batter The direction of the solar pack is due south slightly to the west, with a horizon dip Angle of 34.170 As far as possible to use solar street lamp sets of products, by the manufacturer to provide qualified supporting anti-wind lamppost material and basic drawings, or by the structure of professional technical personnel according to the local climate conditions of the lamp poles and foundation anti-wind design or verification.Parthenon compared to Pantheon... in design, lighting, and shape?The Pantheon is in Rome and is a temple to all of the Roman gods (the word Pantheon additionally ability number of gods). The Parthenon is in Athens (on the Acropolis) and is the temple of Athena, the buyer deity of the city
Solar Street Lamps Are Common in Daily Use
Solar Street Lamps Are Common in Daily Use
First, the lights of solar street lamps flicker and the brightness is unstable. In case of this phenomenon, the first thing is to replace the lamps. If the lamps are replaced or flicker occurs, it can be determined that it is not the problem of the lamps. At this time, it is necessary to check the line. It is not ruled out that it is caused by poor contact of the interface of the line.Second, solar street lamps can only last for one or two days on cloudy and rainy days. The main reasons for this phenomenon are as follows:1. The charging of solar battery is not satisfied. The charging dissatisfaction of solar battery is the reason for solar charging. First, observe the recent weather conditions and whether it can ensure charging for about 5-7 hours a day. If the charging is only 2-3 hours, it is normal. Please rest assured to use it.2. Check whether the solar battery is aging. Under normal working conditions, the service life of the battery is 4-5 years.Third, when the solar street lamp stops working, we should first check whether the controller is normal, because generally, such a situation will occur. A great reason lies in the solar controller. If so, we should carry out maintenance work in time.Fourth, when installing solar street lamps, do not let the solar panels be blocked by foreign objects, so that they can normally absorb solar light for charging. The maintenance and cleaning of solar street lamps should be carried out periodically, especially in some dusty areas, the cleaning frequency should be once a year, while in areas with relatively little dust, the medium frequency rate can be adjusted once every three years to ensure the normal charging of solar panels.For more questions, please click the right figure to consult online customer service.
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