Required to work with PHILIPS HUE, requires a connection to the Philips Hue bridge. -On / Off / Dim control. -Save up to 5 scenes. -Wall mount magnetic holder. -Runs on CR2450 battery Use as a remote control Pick up the remote and use it wherever you want for your comfort. The control unit of the switch is magnetic and can be removed from the base plate. Dim your Philips Hue lights Using the Philips Hue dimmer switch, you can smoothly dim your favorite light setting up and down Place it where it matters The Philips Hue dimmer switch works as a normal wall switch and dimmer. You can place it anywhere you want, using screws or the adhesive tape on the back plate of the switch Switch between scenes When using your dimmer switch with Philips Hue white ambiance or Philips Hue white and color ambiance products, you can use the on-button to switch between 4 light recipes, or use the Philips Hue app to configure your favorite 4 scenes. It's all up to you Requires a Philips Hue bridge This product requires a connection to the Philips Hue bridge Specifications: Batteries included (CR2450 battery)1 x CR2450 Frequency band: 2400 – 2483.5 MHz Lifetime: 50000 clicks Max. lights per switch: 10 if not linked to Hue bridge Minimal battery lifetime: 3 year(s) Minimal range indoor: 500 inch Software upgradeable when connected to Hue bridge Switch depth: 11 mm Switch height: 92 mm Switch width: 35 mm Weight of switch: 37 g Wall plate depth: 14 mm Wall plate height: 115 mm Wall plate width: 70 mm Weight including wall plate: 67 g Zigbee Light link : protocol IEEE 802.15.4 Warranty: 2 year carry-in.