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
GU10 LED Spot C Series 175-265Vac Ra80 gu5.3 base 35,000hrs Non-Dim
REFINE GU10 6.5W DIM. 10° BEAM ANGLE - GREEN CREATIVE - Your Partner for Professional Lighting Solutions