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
Bright MR16 LED Spotlight, 6 Watt MR16 GU5.3 LED Spot Light Bulb
GU5.3 LED Bulbs MR16 GU5.3 4W LED Spotlight, 4W(Equivalent 40W Halogen Bulb Replacement) Cool White 6000K LED Spot Light Bulbs, for Landscape Recessed Track Lighting,85-265V,Pack of 6 - - Amazon.com