The lamp socket is designed for standard e27 light-bulb (not included) but also takes your standard e26 size (tested). We will provide all american/canadian customers with a plug adapter (eu to us) or change the plug to a vintage looking plug (when ordering let us know your preference). All free of charge. Works with 220v as well as 110v. Length of electric cable is 230cm. up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.