The main function of the solar cells convert light energy into electrical energy, this phenomenon is known as the photovoltaic effect. Among the more common solar cells and more practical monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells, three solar lights, plenty of sunshine in good sunlight eastern and western regions, the use of polycrystalline silicon solar cells as well because of polycrystalline silicon solar cell production process is relatively simple, the price is lower than the single crystal. Conversion efficiency in recent years continues to increase. On rainy days the sun is relatively more abundant in the southern region is not very light led solar lights, the use of single crystal silicon solar cells as well landscape solar lights, because silicon solar cells more stable electrical performance parameters. Of course, in the case of amorphous silicon solar cells sunlight is weak indoors better, because amorphous silicon solar cells on solar illumination conditions require relatively low. Batteries: batteries consisting of single or multiple solar light equipment, its storage during the day by the solar cell, the energy output to the light source at night. Easy installation, the structure using standard parts, no external circuit. Directly on the ground, without trenching and laying cable special. Solar Light Factory, Qingdao Yi Gang (online consultation), solar lights provided by Yi Gang, Qingdao Solar Limited. Yi Gang Qingdao Solar Limited (www.gangyisolar.com) is in Qingdao, Shandong, solar and renewable energy leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingdao Yi Gang leader with the staff warmly welcome all inquiries negotiations to create Qingdao Yi Gang better future.