In this paper, we are going to discuss the streetlight system and the accident avoidance system which may help society to reduce the number of accidents which is usually happening in u-turns and also with the help of IOT based smart street lights, we can reduce the energy consumption. Streetlights play an important role in cities which means to avoid accidents, secure roads and provide better vision since evening to morning. As the world is ready to accept the technology, we need to upgrade that street light system which will reduce the energy consumptions and save energy. Also one of the major problems happens in cities is accidents, so we are applying IR mechanism to avoid the accidents that usually happens in u-turns. As our goal is to save energy, so we are using LEDs which is directional light source it can emit light in a specific direction thereby optimizing the efficiency of streetlights. The IR sensors detect the objects and set the intensity of LEDs to high for some time. The work has achieved better performance and reduces energy consumption as compared to the current system.