Sunlite 20-Watt MR16 Flood Halogen GU10 Base Light Bulbs (6-Pack) HD02288-6 - The Home Depot
LUXRITE 50-Watt Halogen Equivalent MR16 Dimmable GU10 Base LED Light Bulbs Enclosed Fixture Rated 4000K Cool White (16-Pack) LR21502-16PK - The Home Depot
Feit Electric 20-Watt EQ MR16 Bright White GU10 Pin Base Dimmable Halogen Light Bulb (2-Pack) in the Spot & Flood Light Bulbs department at Lowes.com
GU10 Bulb, 6 Pack Halogen GU10 120V 50W, Dimmable, MR16 GU10 Light Bulb with Long Lasting Lifespan, gu10+c 120v 50w for Track&Recessed Lighting, Gu10 Base Bulb, W50MR16/FL/GU10 (Silver Light Cup) - Walmart.com