This set of 2 high-quality wall or ceiling lamps was designed by motoko ishii for the manufacturer staff leuchten in germany during the 1960s. These sculptural light objects are two originals from the space age in brutalist design. additional electrical information: - comes with original electrical parts - suitable for 110v - 250v - requires e14 bulbs (max 25 w) - us: requires e12 bulbs with e12 to e14 screw base adapters i have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.