"COOPER WIRING" LAMPHOLDER ADAPTER Lampholder adapter. Keyless. Outlet adapter. Medium base. Color : ivory. Volt : 125 volt. Watt : 660 watt. Outlets on adapters are 2-wire polarized. Pull chain for 718 controls lampholder. Side outlets are always on. Ul listed, (file no. e15055). Meets all ul 496 and 498 requirements.