GU10 E27 G9 E14 T8 B2 LED Lights Lamp Bulb Socket Adapter Converter Holder AU | eBay
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
MASUNN G9 To GU10 LED Light Bulb Base Screw Adapter Holder Socket Converter 220V 5A : Amazon.co.uk: DIY & Tools
G9 To GU10 Lamp Holder Adapter Base Light Bulb Lamp Adapter Holder Socket Converter Lamp Bases