The Caseta Wireless In-Wall Dimmer communicates with Radio Powr Savr sensors and Pico remote through radio frequency (RF). Turns lights on/off or raise/lower to adjust brightness. Works with up to 600 watts incandescent/halogen or 150 watts dimmable LED/CFL. Up to ten transmitting devices may be associated to each in-wall dimmer. Use Pico remote for multi-location (two or more switches controlling a set of lights). Available in gloss finishes. Designer wall plate sold separately.