Street light is a raised source of light that is commonly used along walkway and streets when the surrounding turns dark. By using the latest technology Light emitting diode, the control of light intensity is possible by using sensors which can detect the movement of vehicles. As the vehicles move forward, the light intensity goes on increasing for a few seconds, and as passes away the intensity decreases. LED lamp has several advantages. For a fixed input power, it provides more lumen and less carbon dioxide as compared to conventional lamps like CFL, Fluoresrcent etc. By using the auto switching system, we can also control power consumption at the streets and eliminationg manpower. The production and use of PV cell to generate electricity are an increasingly popular resource solution globally. The focus of proposed work is to make the most efficient use of the energy received from the sun to power street lights. Solar energy is collected with the aid of solar panel and battery is charged during the day time and this energy is used for power street lights during night. In addition, If solar tracker system is used we can attain maximum energy from the sun.