Feature: 100% Brand new and high quality This conversion adapter is used to convert your custom E27/B22/E14 large threaded base to a power socket that can be plugged into a common 2-pin cylinder or 2-line parallel plug Perfect for restoring old lamps and lights or homemade lighting fixtures. Used to connect your E27/B22/E14 lamp socket holder to your US or EU Power female socket for US or EU Plug