HRYSPN LED MR11 Light Bulbs 2W, 12V 20W Halogen Replacement, GU4 Bi-Pin Base, Daylight White 6000K (Pack of 4) - - Amazon.com
Pack of Three (3), LED 2.5W MR11 GU4.0 12V AC/DC Lamp Bulb - - Amazon.com
Westinghouse 0477100 Lamp, 5 W, GU4 Halogen Lamp, MR11 Shape, 27 Lumens | State Electric
Feit Electric 20-Watt Equivalent MR11 GU4 Bi-Pin Dimmable 12-Volt Track Lighting 90+ CRI LED Flood Light Bulb, Bright White BPFTD/930CA - The Home Depot