Solar Lamps are lamps that use solar energy to convert into energy and provide light. Solar lamps have no emissions and are safe, energy efficient and highly economical. The light of solar lamps will not be affected by wind and rain, and the quality and stability of light are very thorough. Solar lamps have the characteristics of automatic charging in the sun, and do not require manual charging. At the same time, solar lamps have long service life and lighting time, often more than 8 hours of continuous work. Solar lamps are generally composed of photovoltaic panels, battery wings, lamps and control systems. The sun shines on the photovoltaic panel of the solar lamp, and the photovoltaic panel converts the sunlight into electric energy through the photoelectric effect, which is stored in the battery. When the night comes, the battery will output the electric energy, so that the lamp will light up. Solar lamps can be widely used in outdoor, such as parks, streets, roads, gardens, etc. They are energy-saving and environmental-friendly products. Solar lamps not only solve the urban energy shortage problem, but also make the villages lighting. It is also beneficial to reduce the indusrial exhaust gas pollution. In summary, solar lamps are a kind of energy-saving and environment-friendly lamp. It has no emissions, long service life and lighting time, and can be widely used in outdoor. It can not only solve the urban energy shortage problem, but also will make a great contribution to the cause of environmental protection.