Preset your 4 favorite light settings with the Philips Hue tap switch. Select a scene you have created yourself, one of the scenes that Philips has created for you. or program a button to switch all lights off. It's all up to you. Installation is easy; just place the tap anywhere using screws or adhesive tape (included), and use it as a normal wall switch or as a remote control. The Philips Hue Tap uses kinetic energy and is powered by your touch, so no batteries needed.