Amazon.com: (10)-Pack GU10 Halogen Bulb 120V 20W Light Bulb 120 Volt 20 Watt Bulbs Lamp : Tools & Home Improvement
Feit Electric 20-Watt EQ MR16 Dimmable Bright White Reflector Light Fixture Halogen Light Bulb (2-Pack) in the Halogen Light Bulbs department at Lowes.com