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FINELED MR16 to GU10 Adapter Converters Light Sockets Lamp Holder,MR16/GU5.3 To GU10 Light Bulb Base Socket Lamp Adapter Utilize GU10 Base Bulbs in a MR16 Socket - - Amazon.com
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
Amazon.com: MR16 LED Bulbs Non Dimmable 10PACK, 6000K Cool White, Daylight, AC/DC12V, 5W,50W Halogen Bulb Equivalent,90% Energy Saving,40 Degree,GU5.3 Base, by Boxlood : Everything Else