Kichler 25-Watt EQ MR11 Warm White Gu4 LED Light Bulb in the General Purpose LED Light Bulbs department at Lowes.com
MR11 GU4 LED Light Bulbs GU4 Bi-Pin Base AC12V 2W (20W Halogen Light Bulbs) Warm White 3000K Utral Bright Spotlight for Home Landscape Track Lighting,Pack of 6 - - Amazon.com
Westinghouse 5-Watt 12 Volt Halogen MR11 Clear Lens Narrow Flood GU4 Base Light Bulb 0476600 - The Home Depot