The Philips Hue Tap Dial Switch from Philips Hue — the world's leading smart lighting brand — offers premium-quality illumination that is fully controllable via the Hue app, Alexa, Google Home, and Apple HomeKit, setting the standard for smart home lighting integration and reliability. Rotary dial + 4 buttons, No battery (kinetic energy), Wall mount, Scene control. Synchronise with Hue Entertainment for immersive lighting that reacts to your movies and games, or set gentle sunrise alarms and wind-down routines that align lighting with your natural circadian rhythm. Backed by Philips Signify's industry-leading warranty and a continuously expanding ecosystem of compatible devices and accessories.