PH 2/1 wall lamp from Louis Poulsen is well suited as a bedside lamp or mood lighting. The screens are made of reflective mouth-blown opal glass in three layers that direct most of the light downwards. They are glossy on the outside and have a matte sandblasted inside that provides a soft and diffuse light. The iconic three-screen system was designed by Danish Poul Henningsen, who, in collaboration with Louis Poulsen, designed the first PH lamps in 1925-1926 for an exhibition in Paris. Here, he has used a scientific perspective as the lamp is based on the logarithmic spiral, a mathematical spiral curve that occurs in many places in nature. This gives an even distribution over the entire curve of the screen and, together with the diffuse reflection through the glass, creates a harmonious and glare-free light. The numbers of the PH lamps refer to the size of the screens and the letters come from the designer's initials. Feel free to explore the wide range of PH lamps.