PH 3/2 WallThe Louis Poulsen PH 3 2 Wall is part of a three shade family of lights, including 30 models today. Designed by Poul Henningsen, this system includes table, floor, and wall lamps, as well as chandeliers, popular in the 1930s for high ceiling homes. Originally, shades were metal with painted undersides to provide diffuse, warm, or cool light, later incorporating glass for broader illumination. Henningsen's scientific approach used the logarithmic