Sonline 2X E27 Screw to B22 Bayonet Base Light Lamp Bulb Adapter Converter Socket Base B22(male plug) to E27(female socket) Light Lamp Bulbs Adapter Converter. High temperature resistant, anti-burning PBT and anti-aging Size (L): about 3cm(1.2 inch) Package included 2 x B22 to E27 adapter