This LBC-400 Light Bulb Changer Head fits recessed and track lighting bulbs. The Recessed and Track Lighting Bulb head is a suction cup design that attaches easily and securely to any smooth surface floodlight-sized bulb and includes a string used to release the suction cup from the bulb. This head can be used on any smooth surface floodlight but is specifically designed to remove a burned-out bulb from inside of a recessed can-type lighting fixture. This head fits the industry standard thread pattern found on our 16 and 11 3-section aluminum poles as well as our 11 3-section steel pole.