Includes 2 changeable control knobs, one ivory and one white to match either color wall plate, (wall plate sold separately). Rotate to select light level, rotary on/off. Features electrostatic discharge tested, mechanical air-gap switch to disconnect loadpower, and RFI suppression. Rated at 120 volt, 60Hz, works with 120 volt incandescents and halogens. 600 watt maximum capacity. UL/CSA Listed.