Leviton HXC10-1TW DHC On and Off Wall Mounted Switch, White Controls Leviton's DHC devices as well as any other manufacturer's X-10 protocol compliant devices Utilizes existing 60Hz 120V AC house wiring for 'No New Wires' installation, when neutral wire is present in existing boxes May be used to control lights and loads remotely (this device does not control a load) Compatible with Decora screw less and Decora standard designer wall plates HCA02-10E DHC System Amplifier Module must be installed to ensure maximum signal strength (sold separately)