Maestro Occupancy Sensor Wht Automatically turn lights on and off with this wall-mounted switch. turns lights on when anyone enters the room and turns them off when vacant. Detects motions of room occupants. Uses Advanced XCT sensing technology. up to 900 sq ft of coverage. Also features "Ambient Light Detect" mode: lights won't turn on if there is enough natural light present; user may still manually turn lights on. Works with all bulb types. Requires ground wire. Features Color: White Single Pole/3 Way Voltage Rating: 120 Vac USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.