FINELED MR16 to GU10 Adapter Converters Light Sockets Lamp Holder,MR16/GU5.3 To GU10 Light Bulb Base Socket Lamp Adapter Utilize GU10 Base Bulbs in a MR16 Socket - - Amazon.com
6 Pack G4 GX5.3 Lamp Holder Rectangular Porcelain Socket for MR16 MR11 LED CFL Halogen Bulbs with 6" Leads - - Amazon.com