Amazon.com : E-Simpo® 12pcs MR16 to Gu10 Light Socket Adapter, LED Halogen MR16 to GU10 GU5.3 to Gu10 Spotlight Lamp Base Holder Converter, Need Remove MR16 Transformer if Old MR16 is 12V
LED 7W MR16 27K GU10 FL | LED MR16 | TCP Lighting
GE Reveal HD 50-Watt EQ MR16 Color-enhancing Gu10 Pin Base Dimmable LED Light Bulb (2-Pack) in the Spot & Flood Light Bulbs department at Lowes.com
Vinaco GU10 Bulb, 6 Pack Halogen 120V 50W, Dimmable, MR16 GU10 Light Bulb with Long Lasting Lifespan, gu10+c for Track&Recessed Lighting, Gu10 Base Bulb, 50W MR16/FL/GU10, Warm White - Amazon.com
Architectural Grade LED MR16 GU10 Light Bulb Wide Flood 3000K Smart Dim Silver SunLight2