Control up to three Rooms or a Zone with each individual button of the Tap dial switch. 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. The Tap dial switch serves as an accessory for the Hue lighting system, providing easy access to control light settings. It features four configurable buttons that can be personalized in the Hue app. A Philips Hue Bridge is mandatory for operation. The switch is available in black.