Solar Light Manufacturers, Solar Lantern Manufacturers, Solar Lights China http://www.cn-solargardenlights.com In fact, motor vehicle traffic road illumination requirements to be higher than the above calculation results to many. To meet this requirement, the road expressway, trunk road and Welcome Road, leading to government agencies and large public buildings on the main road, downtown or commercial center, road lighting and other cities usually used by the 9-12 meter poles, 250-400W of sodium or metal halide lamp as a light source composed of lights, installed at intervals of 20-30 meters a street. If you work 12 hours a day, in accordance with the requirements of the design of the lights need to consume electricity 3-4.8KWH day. To illustrate the problem, and now we only require a minimum of computing a solar power solar street lighting for a motor vehicle road traffic. 1.1.2 ability to provide solar energy Since the 1950s, since people began to use solar cell, its conversion efficiency has been constantly improved, the current commercialization of solar cell conversion efficiency of 17-18% has been achieved, the widespread use of solar cell conversion efficiency of 15%. Use this conversion efficiency of the solar cell, 1KW average every day how much power it can be made? colour box