We carefully converted this original sun lamp to accommodate a standard (led) bulb (e27). We also added a socket to the base for added impact. Both bulbs turn on simultaneously with the on/off switch on the base. the lamp's base, partially made of bakelite, rests on four casters. The metal shade is highly adjustable. the lamp has a robust patina and embodies the 1930s bauhaus style. dimensions: h160 cm / shade diameter 28 cm / base 39 x 39 cm 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.