For remote and local X10 control of dimmable lighting. Push button ON/OFF control of incandescent lights up to 500W. Responds to ON/OFF, DIM/BRIGHT, and ALL LIGHTS ON/ALL UNITS OFF by X10 signal. Features: Rated at 500 watts (incandescent). Dimmable through X10 controllers. The WS477 Wall Dimmer Switch is designed to control incandescent only lights with a rating of between 40W and 500W. Lights rated below 40W might flicker or operate erratically. A push-button is provided on the switch for local on/off and dim/bright control.