perfect for putting outdoor lighting, driveway controls and walkway lighting, post lamps, pole lanterns, coach and entry way porch lights. With the photocell light sensor, the outdoor lighting remote control can detect the amount of sunlight and automatically switch to dusk and turn off at dawn. perfect for wiring into a lamp or lighting system requiring photoelectric automation. It makes the lighting is used only when it should be. Helps increase energy efficiency and bulb life, reducing daily operating life. Easy to install, it can work with most types of light bulbs, such as LED, incandescent, halogen and fluorescent bulb, etc. It is used as a light-sensitive switch that can turn off the device when there is light and turn it back on when there is no light. It is very suitable for connecting to lamps or lighting systems that require photoelectric automation. It uses automatic lighting at night to stop intruders, thereby providing security. Features: photoelectric switch Size: 52.5x42x29mm Model: JL-103A ,120VAC The lights are turned on automatically at dusk and turned off at dawn. Material:ABS colour:Black Package Contents: 2 x Photoelectric switch Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.