Always ready smart bulb dimmer compatible with Philips Hue smart bulbs that requires no wiring. Attaches to existing toggle-style switches, locking it in the ON position so bulbs stay connected. Features a 2-step install process that takes less than 2 minutes. Provides instant and direct control of compatible bulbs that utilizes a 2.4 GHz, Zigbee 3.0 or Zigbee Light Link wireless technology. Philips Hue bridge certified for use in a Hue bridge system. Provides direct dimming control of Philips Hue lamps without the need for a hub, bridge, or smartphone. Clean look; hidden LED (light emitting diode) illuminates to provide feedback of successful communication. Quickly attaches to most common toggle switches to keep the lighting control where you expect it, while ensuring the connected bulbs stay connected. Control up to 12 connected bulbs per remote control in standalone, without a system bridge. Battery-powered, requires no wiring. 3 year battery life (1) CR2032 battery included. Rotary style provides intuitive, familiar control of your lights. Low battery indication LED. Multi-location capable without a bridge; up to 6 Aurora dimmers can control a set of lights in a standalone application.