PH 2/1 Pendant by Louis Poulsen belongs to Poul Henningsen's three-shade family, a lighting system developed from 1925–26 and one of the most significant contributions to 20th-century design. Henningsen — architect, writer and polemicist — spent his career pursuing a single objective: to eliminate glare from electric light while directing illumination exactly where it was needed and producing soft, natural-feeling shadows. The three-shade system he developed, based on a logarithmic spiral geometry, remains the formal foundation of the PH 2/1. As the smallest pendant in the family, the 2/1 is a compact, precisely proportioned lamp that delivers the characteristic warm, layered PH light in a format suited to intimate spaces and lower ceiling heights.

Three concentric shades — the proportions of each determined by Henningsen's logarithmic calculations rather than aesthetic intuition — work together to redirect and soften light from every angle, ensuring no direct line of sight to the bulb regardless of viewing position. In metal finish the PH 2/1 Pendant has a quietly industrial, Bauhaus-adjacent character; its modest diameter makes it effective as a single over a bedside table or small dining surface, or clustered in multiples over a longer table. The lamp's visual restraint is itself a design statement.

Architects and interior designers specifying this historically significant fixture will find the PH 2/1 Pendant DWG drawing and CAD block useful for accurate pendant placement, ceiling coordination and lighting layout documentation. The 3D model and Revit family support BIM-compliant project delivery; the IFC file enables coordination with structural and M&E consultants. A precise specification resource for residential, hospitality and commercial interior projects where the PH design legacy is part of the design intent.

Available as a 2D DWG drawing, 3D model, Revit file and IFC file.