As a safe, environment-friendly and exhaustless energy, solar energy has drawn more and more attention from the world. Solar industry has grown from its initial solar thermal products (solar water heater and solar oven) to current photovoltaic products (solar battery and solar lamps). Its photovoltaic products were first applied to space satellites and communication fields. With the development of science and technology, the cost for solar battery has become constantly low and its application has become wider and wider.

1. solar energy is power source. There is no need to pay increasingly high charges and long-term maintenance expenses. It is energy-saving and environment-friendly and produces no pollution. One-time investment will bring about long-term benefit.
2. Supply low-voltage power without any hidden danger in safety. Installation is simple because there is no need for trenching, thus reducing construction accident rate, improving construction progress and saving a lot of project expenses.
3. Solar lamps are highly- technological, green and environment-friendly products, which may effectively improve the image, taste and grads of the places that use them, housing estates, tourist attractions, the institutions that use them and real estate developers. The products have a long service life and are entirely automatically controlled without the need for artificial management