In our understanding of the sun is the earth's atmosphere before loop, and the rotation of the seasons, day and night, but now we can hear the application of science, needed by the human daily life for us, on the application of street lamp lighting for us in the night, convenient for our travel, in the city, the most widely used is the solar garden light. We are say solar garden light is one of the high-tech lighting products, it can be through the science and technology to convert light energy to electrical energy use, use of the product of nature, is to let we actually use the green energy without harm, but also can make our city green image increased more, add a light to the city. Another reason is that it can be widely used, solar garden light little cost of investment, after these years mature solar technology, solar garden light is on cost control, especially it can bring a lot of convenient in construction.