It comes and goes Odace LED Schneider Electric has an LED light on the bottom of the switch. This LED will light when the office or light indicator to locate it in the dark. Features: Recessed switch back and forth with LED light LED indicator warning light see-through control: Switch Mounting: screw Colour: White (RAL9003) hardware format: Pozidriv # 1 Stripping the son: 12mm installation depth: 18, 75 mm Dimensions (HxWxD): 71x71x33,6 mm packaging: Comes in original packaging