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
(7) 20 Watt GU10 MR16 120 Volt 20W 20 W Halogen Light Bulb 20Watts Flood JDR | eBay
BAB - 20 watt - 120 volt - MR16 - Twist and Lock (GU10) Base - 2 500K - Lensed - Reflector Flood for sale online | eBay