Amazon.com: ALIDE MR16 GU5.3 Blue Led Bulbs 5W,20W 35W 50W Halogen Equiv,Low Voltage 12V MR16 Blue Color Bulb Spotlights for Outdoor Landscape Flood Yard Garden Tree Pool Step Lighting,Not Dimmable,38 Deg,6 Pack :
DGZZI MR16 Socket 10PCS Halogen Lamp Ceramic Wire Connector Base Socket Holder Adapter for G4, G6.35, GY6.35, GX5.3, GU5.3, MR16, GZ4 MR11 Bi-Pin Base - - Amazon.com
DiCUNO G4, GU5.3 Bi-Pin Ceramic Base Socket, MR16, MR11 Halogen Incandescent LED Bulb Holder Wire Connector (6pcs) - - Amazon.com
Pack of 20,G5.3 / GU5.3 / MR16 / G4 / MR11 Round Ceramic LED Halogen Lamp Light Bulb Socket Holder Base Wire Connector Adapter MR16 (20 Pack) - - Amazon.com
FTL MR16 LED Bulb 12V 50W Equivalent Halogen Replacement GU5.3 Pin Base 5W 5000K Daylight Non-Dimmable for Landscape and Track Lights,6-Pack - - Amazon .com