Exclusive silver sputnik pendant lamp designed by cosack during the 1970s. Sockets: it needs 21 x e14 small bulb and function on voltage from 110 to 240 volts. Dimensions: diameter: 16" in. / 40 cm height (can be edited ) : 35.5" in. / 90 cm very good condition. All electrical items function on various voltage standards (from 110 to 240 volts / ex. Usa-uk- etc.). This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I 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.