Light timers are devices that automatically turn lights on and off at preset times. They are commonly used to control outdoor lighting, such as porch lights and streetlights, but can also be used to control indoor lighting, such as lamps and ceiling lights. Light timers are a convenient way to save energy and improve security.
Light timers work by using a small motor to turn a dial that opens and closes a switch. The dial is set to the desired on and off times, and the motor turns the dial accordingly. Light timers can be set to turn lights on and off at different times each day, or they can be set to a repeating schedule.