Lamp dimmer plugs into a standard grounded receptacle, providing smooth dimming and on/off control for a wide variety of two-prong incandescent light bulbs, wirelessly from the ClareHome App. This ClareVue Plug-In Lamp Dimmer also acts as a relay bridge, allowing to expand existing Z-Wave Network. Lamp dimmer modules incorporate the latest Z-Wave technology to provide manual or automated control for ON, OFF, and smooth dimming of a wide variety of lamps. The modules simply plug into a standard grounded wall outlet and a two-pronged lamp is plugged into the front. No tools are required for installation, but modules will need to be paired to your smart home control hub before can begin to control devices from the ClareHome App.