Philips LED 50-Watt MR16 Floodlight Light Bulb, Bright white, Dimmable, 40-Degree Beam Spread Angle, GU5.3 Base (3-Pack) - Walmart.com
Simply Conserve ENERGY STAR GU5.3 50-watt EQ 50-Watt EQ LED Mr16 Warm White G5.3 Base Dimmable Spotlight Light Bulb (100-Pack) in the Spot & Flood LED Light Bulbs department at Lowes.com