This is a large smoked glass ball (hand-made) pendant, manufactured by limburg, germany, from 1970 to 1979. The sockets required is 1 x e27 standard bulb. Light bulbs are not included. It is possible to install this fixture in all countries (us, uk, europe, asia, australia) with white or black cord. Measures: diameter 40 cm x 15.8 inches height (adjustable for higher or lower ceiling): current height: 100 cm. It is in very good condition. 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.