Poul Henningsen created the PH 5 in 1958 in response to manufacturers' constant changes to the shape and size of incandescent light bulbs, naming it after the size of the lamp's main screen. suspension which has a diameter of 50 cm. When the lamp was introduced, he dared to write that he had lost faith in the manufacturers of incandescent light bulbs as they would never learn to be practical or to put the interests of consumers first: “I accepted fate and with the approval by Louis Poulsen I have designed a PH fixture that can be used with any light source, Christmas lights and 100W metal filament bulbs. Although it would be too much to ask for a fluorescent tube in its current form!”. Poul Henningsen wanted to improve the color reproduction characteristics of the light source in the PH 5. Small red and blue screens were therefore inserted to integrate the color in the part of the spectrum to which the eye is least sensitive - the red and blue areas - thus attenuating the light in the central yellow-green region where the eye is most sensitive. At the time, no one knew that the PH 5 would become synonymous with 100% glare-free PH light, regardless of its installation or the light source used. However, the red and blue rings are no longer necessary to achieve superior light quality, as today's light sources reproduce daylight much better than in the days of Poul Henningsen. Even today the PH 5 continues to grace the most modern interiors in a range of colours. In 2020, the range was expanded with monochrome variants, in black, white and ultra blue. In 2022, the PH 5 Pastels series was introduced with the monochromatic pastel colors Oyster Gray and Pale Rose, as well as two pastel combinations, reflecting modern interior trends, namely: Oyster Grey, Blue and Pale Rose and Light Blue, Pale Rose and Peach.
DESIGNED FOR THE TIMES
Poul Henningsen designed the PH 5 lamp in response to the constant changes in shapes and sizes of light sources over the years 1950s and, although this problem is less common today, the classic suspension remains the preferred design.
A design that transcends space and time: this is what makes it an icon.
The luminaire provides comfortable, glare-free light, based on the principle of Poul Henningsen's three-reflective screen system which directs most of the light downwards. It emits light in a horizontal direction, as well as glowing by diffusing a soft radiance from within its core. The lower screen also features a frosted diffuser glass to ensure that the light directed downwards is 100% glare-free.
Materials and finish
Materials: Bottom screen: drawn steel. Other screens and anti-glare disc: drawn aluminium, drawn copper or drawn brass. Fixing systems: laminated aluminium. Diffuser: satin glass.
Dimensions and measurements
Width x height x length (mm) 500 x 267 x 500 Maximum 3.5 kg
< strong>Class and light source
IP20 protection degree. Insulation class II without earthing. 1x75W E27 Light source
Suspension type: 2 x 1 mm² cable. Rosette: yes. Cable length: 3 m.
Product environmental specifications
This product complies with the requirements contained in the European Directives, RoHS Directive 2011/65 and 2015/ 863. The product has been designed so that it can be entirely disassembled and reused.
Designer, architect, writer and hugely influential Danish cultural critic, he had an enormous impact on Danish thought and design. His legacy as an original master of light is an integral part of Louis Poulsen's tradition of creating exceptional light.
Poul Henningsen, born in Copenhagen in 1894, was the son of Danish writers Agnes Henningsen and Carl Ewald. He began practicing traditional functionalist architecture, but over the years his professional interests shifted primarily toward lighting, for which he is most famous. He expanded his field of occupation to the areas of writing, becoming a journalist and author.