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
4pcs White G4 Male to E27 Female Socket LED Halogen CFL Light Bulb Lamp Adapter | eBay