The ph 4/3 lamp is an absolute classic, designed by the renowned danish designer and architect poul henningsen. It has been manufactured by louis poulsen since 1966. The lamp's form is based on the same principle of a three-shaded reflector system as other lamps, including the ph 5 and ph charlottenborg. This system directs light not only downward but also sideways, illuminating the lamp itself. Thanks to its design, the ph 4/3 produces a diffused, glare-free light with a warm tone. dimensions: diameter: 45cm height: 54cm the lamp is in very good condition, almost perfect. This piece has an attribution mark, i am sure that it is completely authentic and 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.