G9 to GU10 lamp holder socket adapter G9-GU10 lamp base converter connector 10/lot _ - AliExpress Mobile
TORCHSTAR GU10 to G9 Adapter Converter, Convert GU10 Base to G9 Plug-in Base Socket, Fits Halogen/LED/CFL Light Bulbs, Heat-resistant, Hazard-Free, Anti-Burning, Max 250V, 1000W, Pack of 6 - Amazon.com