H&Z GU10 Halogen 50W Bulbs, 6 pack GU10+C 120V 50W with 2800k Warm White, Long Lifespan GU10 MR16 Dimmable for Track & Recessed Lighting - Walmart.com
quelili GU10 Dimmable LED Bulbs, 50W Spotlight Halogen Lamps Equivalent, MR16 Full Glass Cover Reflector, 4.5W 400lm 3000k Warm White, UL Listed, Energy Star (Pack of 6)(30K) - Amazon.com
Sigalux GU10 LED Light Bulbs, 50W Halogen Bulbs Equivalent, 5000K Daylight White MR16 LED Bulb, LED Bulbs for Recessed Track Lighting, 4.2W, 350 LM Non-Dimmable, 8 Pack - Amazon.com
LED MR16 - 3000K - 120 Volt - 50 Watt Halogen Replacement | CityLightsUSA.com