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Solar energy is a renewable, clean ,inexhaustible energy and is the future trend of energy use. With the widespread application of clean energy and the gradual maturity of energy storage technology, the advantages of led solar street lamps in road lighting and rural lighting are gradually emerging.this paper make points of the working principle, the advantages and the applications of led solar street light .
LED solar street lights take advantage of the solar energy converting into electrical energy to realize illumination. Usually there are solar panels on the top of the led solar street light , which is also called as photovoltaic modules. During the day, these photovoltaic modules made of polycrystalline silicon convert solar energy into electrical energy stored in a battery. Then in the evening , this electrical energy will be transported to the led solar street lamp through the the control of intelligent controller, providing people with light at night. thus, a solar street light system that doesn't require long-distance power transmission is formed.
Since the electricity for led solar street lights comes from the sun, there is no cable and few electric leakage situations which result from those laid cables required by long distance electricity transmission. at the same time, the chances of other accidents are less likely to happen. DC controller can ensure that the battery is not damaged due to overcharge or overdischarge, and has the functions of light control, time control, temperature compensation and lightning protection, reverse polarity protection. as there is no need to lay cables, no need of AC for power supply . so it is no need to worry about the electric cost.
led solar street lights are recognized by the majority of customers for a range of advantages such as low carbon environmental protection , safe , reliability etc.and they have been vigorously promoted in the market. A great number of places like urban main road , secondary road ,city park , residential areas , rural areas, factories ,attractions are applicable.
the advantages of led solar street light
1) Energy : renewable+free+clean+environmental friendly +unlimited resource +available for all
The electricity charge of the led street lights powered by national grid has long been a relatively large but indispensable expense.the electricity that led solar street lights use is converted from solar energy. Solar energy is a environmental friendly , renewable, clean, free energy, which is available to everyone. Making full use of solar energy can solve the problem of power supply in some countries and regions that lack electricity. This resource not only can be utilized locally but also won’t add to the expense burden.
2) easy to installation
The installation of led solar street lights is simple and convenient. There is no need to carry out large amount of foundation works like laying cables. It has advantage over ordinary street light in this respect. Only a base is needed to be fixed. All circuits and controllers are laid inside or on the lighting poles, making the whole a integrated lighting unit.
3) easy for replacement and maintenance
the whole illumination system operate automatically and its operation cost is almost zero. as long as there is no sign of malfunction ,no human intervention is needed.
the applications of led solar street light
The advantages of using led solar street lights are obvious in some places where laying cables is a huge task and a heavy burden and there is not much demand for electricity and self-supporting electricity can significantly reduce costs.
1)the roads in villages, towns and other sparsely populated areas .
2)urban road, parking lot, campus ,attractions ,city parks,residential areas,industrial park .
3) the inside of golf course, beach resort, high-grade villa area etc.
4) highway warning signs, street light on bridge etc.
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