The automatic streetlight control system is a simple and powerful concept, which uses the transistor as a switch to automatically turn the streetlight on and off. Using this system, manual works are removed. It automatically turns on the lights when sunlight falls below the visible region of our vision. Automatically turns off lights in bright sunlight conditions. This is done by a sensor called Light Dependent Resistor (LDR) which perceives light in reality like our eyes. Using this system also reduces energy consumption because nowadays manually operated street lights are not turned off properly even when sunlight comes and are also not turned on before sunset. On sunny and rainy days, the on and off times change significantly, which is one of the main disadvantages of using timer circuits or manual process. This design uses the operation of a transistor in the saturation region and cut-off region to turn lights on and off at the right time with the help of an electromagnetically controlled switch. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay The primary considerations in current field technologies are automation, energy consumption, and cost effectiveness. Automation aims to reduce human power with the help of intelligent systems. Energy saving is always the main consideration as the energy source (thermal, hydroelectric, etc.) is reduced for several reasons. The automatic street lamp does not require manual switching on and off. The system itself detects whether there is a need for light or not. When the darkness increases to a defined value then the street lamp automatically switches from off to on and when there is another light source the street lamp turns off. The darkness range at which to turn on the streetlight can also be customized using the potentiometer provided in the circuit. Additionally, the circuit is carefully designed to avoid common problems such as overload, relay vibration, and inductive backlash in the relay. Every evening, The street lighting control system must turn on at the right time and aim seamlessly. Street lights in a city provide safer traffic environments, a safer ordinary environment and can represent a great development for the architectural, tourist and commercial production of the city. However, these benefits are not exactly cheap, given that on average 40% of public funds on energy bills are spent on street lighting alone. The increase in energy prices, in addition to significant maintenance costs and the ever-increasing expectations expressed by the public, constantly weigh on lighting finances. Street lighting provides a safe night-time environment for all road users, including pedestrians. Providing street lighting is one of the most important and expensive responsibilities of any city. Lighting can account for 10% to 40% of the total energy bill in most cities around the world. Street lighting is generally a critical concern for public authorities in developing countries due to its importance for financial and social stability. Every year unnecessary lighting wastes huge financial resources and poor lighting creates unsafe environments. Energy-efficient technologies and design mechanisms can extremely reduce the costs of street lighting. PROJECT OBJECTIVE: To study streetlight control systems.