Medium in the tube wall lamp by dominique perrault & gaëlle lauriot-prévost dimensions: d 14 x h 52 cm materials: borosilicat glass available in different sizes. All our lamps can be wired according to each country. If sold to the usa it will be wired for the usa for instance. In the tube lamp diffuses a filtered, softened, directed and oriented light via the simple fixed or removable positioning of a shaped filter-mesh or a reflector, whose material "gives" the colour. 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).