The lamp can be used as table - and floor lamp which can be used. It has a multi-circuit since two light sources can be used separately or used together. the opal glass sphere has a diameter of 25 cm, the total height 50 cm 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, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.