GU10 E27 E14 B22 Round Bulb Extender White Holder Adapter Lot Lamp Light
B22 to E27 adaptor is 64mm high by 39mm wide (22mm Bayonet Cap to 27mm screw). E27 to B22 adaptor is 52mm high by 27mm wide (22mm bayonet to 27mm screw). GU10 to E27 adaptor is 58mm high by 34mm wide (GU10 to E27 Screw).