Check the listing for details. DEWENWILS 2 Pack Light Sensor Socket, Automatic Dusk to Dawn Light Bulb Sockets. Color: White, Condition: New. Listed at 18.22 USD. DEWENWILS Light Sensor Socket for Light Fixtures, Automatic Dusk to Dawn Light Bulb Sockets, Compatible with Incandescent/CFL/LED/Halogen Bulbs, 2 PackPhotosell SensorDusk to dawn setting allows your lights to turn on/off automatically, on at dusk and off at dawn, saving your energy to manually adjust it.Available ApplicationsCompatible with Incandescent, CFL, LED, and Halogen bulbs, perfect for porch lights, front door lights, garage lights, etc, for indoor use or under shelter if used outside.Easier and ComfortableThe light sensor socket can be automatically turned on and off, perfect for the elderly, pregnant woman, and those with limited mobility or back pain; make your life convenient, safer, and energy-efficient.