SmartDealsPro 6-Pack MR16 MR11 G4 GU5.3 Ceramic Miniature Bi-Pin Eared Heat Resistant X Wire Connector Socket for Track Light Downlights Round Porcelain base, two Silicon tier. Pair screw mount holes recessed High Temperature Resistant,Definitely designed for the.high temperatures encountered on halogen assemblies Size: 16.7mm(0.66") Dia x 12mm(0.47") H /150mm(5.90") Silicon Wire MR11 MR16 and G4 Light compatible,Halogen LED and CFL Compatible,Fit any MR16 or MR11 G4 Halogen LED Bulb Plug in LED bulbs and attach it to normal lighting wires