In the present scenario, the automation in the different types of machines plays very important role. It can be observed in our daily life, and there are only few things that are operated manually; most of the devices today are controlled automatically. Automatic system is preferred to the manual system. In the cities, there are street lights in the most of the streets. Due to the operation of the street lights, lots of energy are required for glowing the street lights. Sometimes it happens that even in the daytime the street lights glow uselessly. There are lot of loss of power because of the manual operation of the street lights. To reduce the power loss, it is necessary to apply some circuits and techniques. The aim of this paper is to reduce the amount of power lost in streets in the name of street lights. For that the street lights should glow whenever there is any object or any vehicle in the night and the lights should be switched off at the daytime. As a result of that our model will provide solution for energy saving.