EtekDirect Remote Control Wireless Light Bulb Socket switch for Lamps Bulbs and Fixtures (3 Sockets 1 remote, battery included) All remote controlled socket units have been pre-programmed and can be used immediately. remote with 30m/100ft work range (pass through doors, floors, and walls) Just screw into the light socket and use. Remotely switch on/off any lights at the push of a button The socket receiver will still remain in the OFF mode after a power out, even when the power comes on again. Ideal for home and office lighting (table lamp, ceiling lamp), garage, attic, basement etc. to provide easily controlled lights anywhere in your home or office.