When the optional special crystal LED light source, the light source life of more than 30 years. Poles, lighthouse, lamp, after oxidation, anti-corrosion treatment Qingdao solar lights, environmental adaptability, anti-frost, anti-sun exposure. The main function of solar cells convert light energy into electrical energy in a solar sales Qingdao, this phenomenon is called the photovoltaic effect. Among the more common solar cells and more practical, there are three single crystal silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells in the sunshine too good sunny eastern and western regions, the use of polycrystalline silicon solar cells as well, because 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 Qingdao solar energy, the use of silicon solar cells as well, because the electrical properties of silicon solar cells is relatively stable parameters. Of course, in the case of amorphous silicon solar cells is better indoor sunlight is weak because the amorphous silicon solar cells for solar illumination conditions require relatively low. Solar installation _ Qingdao Qingdao Yi Gang (certified) _ solar energy provided by Qingdao Qingdao Yi Gang Solar Limited. Qingdao Yi Steel Solar Limited (www.gangyisolar.com) is Qingdao, a leader in solar and renewable energy, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Yi Gang leader in Qingdao with the staff warmly welcome all inquiries negotiations to create Qingdao Yi Gang a better future.