Zephyr 50W 120V GU10 Halogen Bulb Z0B0020 - Best Buy
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Simply Conserve ENERGY STAR GU10 50-watt EQ 50-Watt EQ MR16 Soft White GU10 Pin Base Dimmable LED Light Bulb (10-Pack) in the Spot & Flood Light Bulbs department at Lowes.com
GU10 Halogen 50W Bulbs, 6PCS GU10+C 120V 50W Halogen Light Bulbs, GU10 Dimmable, Warm White, High Brightness MR16 GU10 with Glass Cover, Long Lifespan GU10 50W for Recessed Track Lighting, GU10 Base -