A street light is a type of outdoor lighting fixture that is commonly used to illuminate roads, sidewalks, and other public areas at night. Street lights are designed to provide safety and security by increasing visibility and reducing the risk of accidents and crime.Street lights typically consist of a pole and a light fixture, which may be mounted on top of the pole or attached to an arm that extends from the pole. The light fixture may use various types of bulbs, such as high-pressure sodium, metal halide, or LED, depending on the desired level of brightness and energy efficiency.