The ph 5 lamp is an icon of danish design that has gained immense popularity worldwide. Designed by the renowned designer and architect poul henningsen in 1958, the ph 5 is still manufactured by louis poulsen today. The lamp's form is based on the principle of a reflective system, which directs light not only downward but also sideways, illuminating the lamp itself. Thanks to its design, the ph 5 emits a diffused, glare-free light with a warm tone. dimensions: diameter: 50cm height: 27.6cm the lamp is in very good condition, with minimal, natural signs of age. It dates from the 1960s. 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.