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
Platinum BAB GU10 MR16 20W 120V Flood Mini Reflector Bulb – BulbAmerica
GU10 Dimmable LED Bulb,3W(20W-30W Equivalent),Halogen Replacement,Brightness Track Light Cabinet Downlighting,500LM,110V,6000K,Cool White Lamp 4 Pack - - Amazon.com
Manufacturing Energy Saving SMD 20W GU10 Dimmable LED Bulb 220V AR111 LED Spotlight Lamp, LED Spot Light - China LED Spot Light, LED Lamp | Made-in-China.com
Ledare LED 200 lm IKEA Light Bulb GU10 LED1330R4 set of 4 | eBay