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
Bioluz LED 10 Pack MR16 Socket, GU5.3 Socket, LED Halogen Lamp Ceramic Wire Connector Base Socket Adapter MR16 MR11 G4 GU5.3 Socket (Pack of 10) - - Amazon.com