Philips Hue Tap dial switch EU Black Control up to three Rooms or a Zone with each individual button of the Tap dial switch, available in black or white. Turn the dial to dim and brighten the lights. Mount it to the wall, place it on a magnetic surface, or use it as a remote control. Depth: 87 MM No-wire installation Smooth dimming Battery powered Mounts anywhere Easy access to light scenes Height: 174 MM Width: 73 MM