The lamp is equipped with 2 E27 versions, lampshade has a diameter of 30 cm and lamp foot too. The diffuser is missing under the lampshade. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.