The electric power in most of the countries in the world is utilized in lighting the streets. However, the electrical energy consumed by street lights is not efficiently used because the need of street lamps is not essential in every street in all periods of time. In this project, we propose a system that switches off the light for the parts of the streets which are not in use and turns on the light for the parts of streets which are mostly used when it is dark. The smart street lighting also controls the luminosity of light and performs automatic light dimming which is an aspect that serves to reduce energy consumption. The intensity of light can be controlled based on illumination and the weather conditions. Logically, this system may save a large amount of the electrical power. In addition, it may increase the lifetime of the lamps and reduce the pollutions. We can create a network of the devices which are connected to the street lights and we can control the street lights through web app. the intensity of street lights is changed based on the illumination levels.