The PH 2/1 is a light by lighting manufacturer Louis Poulsen and designer Poul Henningsen. As is often the case with Poul Henningsen lights, the PH 2/1 consists of the three-shade system designed by Poul Henningsen back in 1925-1926, which is reflective and emits most of the light downwards. The lampshades are made of handblown, opalised three-layer glass, which is shiny on the outside but sandblasted and matt on the inside. The result is a soft and diffuse light that works well in living rooms, hallways, kitchens and offices