2x B22 to 2xE27 Black 2 Into 1 Light Bulb Lamp Socket Fitting Adaptor Splitter
2x Bayonet Cap (BC) [B22] to 2x Edison Screw (ES) [E27] Light Bulb Splitter Adaptor. B22 to 2x E27 splitter lamp holder is 71mm high by 70mm wide (22mm screw to 2x 27mm screw). The regulations vary from country to country.