Friends of Hue Smart Switch - 3 switches in a set The three switches are perfect for controlling your own Philips Hue system, as they are fully compatible with Hue and conveniently control all integrated lights. Whether used as a smart light switch on the wall or as a handy remote control on the bed, the wireless and battery-free Friends of Hue switch and dimmer connects directly to the Philips Hue Bridge and requires no additional hub. Functions / Compatibility: - can be used for Philips Hue lights and illuminants - Up to 25 switches per Hue-Bridge can be taught-in and integrated - each switch can control up to 50 Philips Hue lights simultaneously - four individually configurable keys (left-hand keys can be assigned to light scenes; right-hand keys are used for switching on and off by pressing briefly and for dimming by holding the key down) - usable like a remote control - thanks to EnOcean Energy Harvesting technology the switch never needs to be charged, because pressing the switch