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
DiCUNO G4, GU5.3 Bi-Pin Ceramic Base Socket, MR16, MR11 Halogen Incandescent LED Bulb Holder Wire Connector (12pcs) - - Amazon.com
GU10 Halogen Bulb 120v 50w Halogen Light Bulbs, 2800k Warm White gu10 Dimmable for Track Light Bulbs ,Glass Cover for Range Hood Light Bulbs Pack of 6 - - Amazon.com