(5pcs/Pack) YiLighting - Miniature Bi-Pin MR16 Base Socket Holder Connector Adapter - Silicon Copper Wire - Ceramic Body For MR16, GU5.3, G4, MR11,GY6.35 Female Base Fixture Spotlights Use this to fit any MR16 or MR11 bulb into a hard wire system. High quality holder fitting for standard MR16 MR11 lamp. Plug in LED bulbs and attach it to normal lighting wires Voltage: 12V-220V; Package: 5PCS x MR16 Sockets.