In the face of conventional energy dwindling, countries are actively seeking can be solved, the method of research and development of new energy to replace the conventional energy, solar lighting lamps continue to provide convenience for people's life. The development of the first is the use of solar energy, solar energy through heat energy is converted to electric tank this process can be directly converted into electrical energy by heat, such as solar garden light. Solar garden light can be different according to different use level, the configuration of the accessories, because of the different purposes, the kinds and properties of solar cells used can have bigger difference. Solar garden light can convert light energy directly into electricity. Thus it can be as a energy converter using; On the other hand, it also can change the change in the optical signal is converted into corresponding electrical signals. And therefore can be used as a photoelectric signal converter. So far, the development and application of solar garden light, technology is the most mature, high conversion efficiency and more affordable price, especially in the low temperature heat utilization, due to the heat source and heat load grade is low, both from efficient use of energy, is the most economic and reasonable.