The light beam of this vintage lamp can be adjusted as desired. Two pieces available. Diameter of the base: 20 cm Length of the shade: 20 cm Depth of the shade: 14 cm Socket: E27 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.