Leviton HXC7S-1TW DHC Seven-Scene 12 Address, Scene Dim/Bright, Off Wall Mounted Dimming Switch Controller, Green Line, 2-Way Communication, White Controls Leviton's scene capable DHC receivers Utilizes existing 60Hz 120V AC house wiring for "No New Wires" installation, when neutral wire is present in existing boxes Utilizes Leviton's patented Intellisense Technology for advanced signal/noise discrimination Green LED's illuminate to indicate ON command sent or Scene "ON" command detected Green LED illuminates to indicate OFF command sent