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GU10 Dimmable LED Bulbs, 50W Spotlight Halogen Lamps Equivalent , MR16 Full Glass Cover Reflector, 4.5W 400lm 5000k Daylight White, UL Listed, Energy Star, by (Pack of 6)(50K) - Walmart.com
Zephyr 50W 120V GU10 Halogen Bulb Z0B0020 - Best Buy