The only dimmer on the market that self-adjust to any dimmable bulb and backed by a lifetime warranty, eliminate flickering and under performing lights forever! And it conveniently turns on and off at the last light setting. SINGLE POLE/3-WAY DIMMER SWITCH: Convenient operation—combines ON/OFF paddle switch with separate slider for dimming control.LED DIMMER: Works with virtually any dimmable lamp and load on typical residential and light commercial wiring (with the exception of 0-10V LED drivers)BEST UNIVERSAL DIMMER: White LED glows when dimmer is OFF for easy location in the dark. And also, it has a self-calibration feature allows you to select lamp type, which then automatically sets the minimum voltage for that lamp, eliminating flickerAVAILABLE COLORS: Comes with three interchangeable face colors: Ivory, White, LightRATING: Incandescent, Halogen & ELV: 700W, MLV: 500VA, LED/CFL: 450W, EFL: 5.5A (Use RH4FBL3PTC for 0-10V)