TORCHSTAR G4, GU5.3 Bi-Pin Socket, up to 75 Watts, Ceramic Body with Mica Covers, for LED Halogen Incandescent Light Bulbs, MR11, MR16, Pack of 5: Amazon.com: Tools & Home Improvement
B&P Lamp 5 1/2 Inch Double Ended Halogen Socket with Bracket
OMTO MR16 GU5.3 GY6.35 Lamp Socket, Common to Miniature Bi-Pin Base G4 G6.35 GX5.3 GZ4 MR11, LED Halogen Incandescent Led Socket Ceramic Body Lamp Holder (12-Pack) (12-Pack) - - Amazon.com