X10 Socket-Rocket Screw-In Lamp Module (LM15A) Add wireless lighting control anywhere simply by unscrewing the light bulb from an existing lamp, then screwing the LM15A into the light socket! (Max 150W, Incandescent Only - No Fluorescent lamps!) Set the Unit and /or House code using an MC460 Mini-Controller, MT522/MT10A Mini Timer, RT504/HR12A remote control, or an SC503 Maxi-Controller No bulky plug-in module required! Nobody will even know its there! Does not have Local Control or Dim/Bright capabilities Can be used Indoors or Outdoors!