4x GU10 To MR16 GU5.3 Light Bulb Base Socket Lamp Adaptor Converter Holder
4x GU10 To MR16 (GU5.3) Light Bulb Adaptor. This adaptor allows you to use a MR16 GU5.3 light bulb in a GU10 socket. MR16 (GU5.3) female. GU10 male to. i.e.10mm GU10 to 5.3mm.