Leviton Lamp Holder, 1-Circuit, 2-Piece, Keyless, 660 W Lamp, 250 V, Incandescent Lamp, Medium Base, Screw Terminal, Pin Mounting, 18 AWG Wire, Phenolic Body, Copper Alloy Shell, Black, Includes: Hook, UL Listed, CSA/NOM Certified. Medium base. No stripping, splicing, or soldering necessary. Pins pierce conductors when cap is screwed down. Provides positive contact. Accepts No. 14 to No. 12 stranded insulated wire. Detachable zinc-plated wire hook. Heavy-duty phenolic socket. 660W/ 250V. UL listed. Rack pack. Medium Base, Two-Piece, Keyless, Incandescent, Phenolic Lampholder, Pin-Type, Single Circuit, Feed-Through, Includes Hook, Black Medium base Two-piece Keyless Model number: 167