Poul Henningsen designed the three-shade system during 1925/1926. The first lights using the system were designed for an exhibition in Paris. His work with Louis Poulsen continued until his death in 1967. Throughout his life, PH sought to create glare-free lighting; aiming to direct light where it was most needed, and creating soft shadows while using incandescent bulbs as a light source. PH 3/2½ Wall is a member of the three-shade family and is one of 19 versions available today. Approximately one thousand different models have been produced over the years and consisted of table, floor and wall lamps, as well as a number of different chandeliers, which were very popular in the 30s for lighting private homes with high ceilings. There were countless combination options. The lights were available in different colors, as well as a range of sizes. The first shades were made of metal with a painted undersurface, such as white, gold or silver depending on whether diffuse, warm or cold light was desired. Glass was later introduced for the three-shade system. In addition to the downward-directed light, glass lamps illuminated the room. PH was the first person to pursue a scientific approach to light and use the logarithmic spiral as a basis. By using a design based on the logarithmic spiral he achieved even distribution of light over the entire curve of the shade. This even light distribution, together with the diffuse reflection through the glass, made it possible to control glare and shadow. Each shade reduces the amount of light equally, due to their distance from the light source. The PH light model numbers refer to the shade size. Each top shade had a corresponding set of middle and lower shades. In the pure models, such as the 2/2, the top shade has a size of about 20 cm, with corresponding lower shades. PH 3/2½ Wall consists of an approximately 30 cm top shade, but uses lower shades from the 2½ model. These hybrid models were introduced due to the desire to hang pendants at lower heights. The system was also used for wall, floor and table lamps. PH 3/2½ Wall was introduced in 2005.

Dimensions

Dimensions11.1'' W x 10.9'' H
Weight4.7 lbs.
Extension12.1"

Product details

FinishBlack
MaterialTop shade: Spun stainless steel. Middle/lower shade: Spun stainless steel. Shadeholder: Die formed glass. Mounting plate: Die cast aluminum. Mounting plate cover: Spun aluminum. Arm: Stainless steel.
CollectionPH 3-2 1/2

Electrical

Bulbs1 x 15W A-19 Medium Base

You know you are getting the best Canadian Landed Price at Montreal Lighting & Hardware. If you find the same product advertised for less by one of our Canadian competitors within 30 days of your purchase, we will gladly match the lower price + 10% of the difference. Click here for more information.

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PH 3-2 1/2 Wall Sconce

SKU: 5743900022
Regular price $1,730.00
Free shipping on orders over $199
Estimated delivery: Usually leaves warehouse in 2-3 weeks.
Description

Poul Henningsen designed the three-shade system during 1925/1926. The first lights using the system were designed for an exhibition in Paris. His work with Louis Poulsen continued until his death in 1967. Throughout his life, PH sought to create glare-free lighting; aiming to direct light where it was most needed, and creating soft shadows while using incandescent bulbs as a light source. PH 3/2½ Wall is a member of the three-shade family and is one of 19 versions available today. Approximately one thousand different models have been produced over the years and consisted of table, floor and wall lamps, as well as a number of different chandeliers, which were very popular in the 30s for lighting private homes with high ceilings. There were countless combination options. The lights were available in different colors, as well as a range of sizes. The first shades were made of metal with a painted undersurface, such as white, gold or silver depending on whether diffuse, warm or cold light was desired. Glass was later introduced for the three-shade system. In addition to the downward-directed light, glass lamps illuminated the room. PH was the first person to pursue a scientific approach to light and use the logarithmic spiral as a basis. By using a design based on the logarithmic spiral he achieved even distribution of light over the entire curve of the shade. This even light distribution, together with the diffuse reflection through the glass, made it possible to control glare and shadow. Each shade reduces the amount of light equally, due to their distance from the light source. The PH light model numbers refer to the shade size. Each top shade had a corresponding set of middle and lower shades. In the pure models, such as the 2/2, the top shade has a size of about 20 cm, with corresponding lower shades. PH 3/2½ Wall consists of an approximately 30 cm top shade, but uses lower shades from the 2½ model. These hybrid models were introduced due to the desire to hang pendants at lower heights. The system was also used for wall, floor and table lamps. PH 3/2½ Wall was introduced in 2005.

Specifications

Dimensions

Dimensions11.1'' W x 10.9'' H
Weight4.7 lbs.
Extension12.1"

Product details

FinishBlack
MaterialTop shade: Spun stainless steel. Middle/lower shade: Spun stainless steel. Shadeholder: Die formed glass. Mounting plate: Die cast aluminum. Mounting plate cover: Spun aluminum. Arm: Stainless steel.
CollectionPH 3-2 1/2

Electrical

Bulbs1 x 15W A-19 Medium Base
Downloads
110% Price match guarantee

You know you are getting the best Canadian Landed Price at Montreal Lighting & Hardware. If you find the same product advertised for less by one of our Canadian competitors within 30 days of your purchase, we will gladly match the lower price + 10% of the difference. Click here for more information.

Louis Poulsen

Copenhagen, Denmark

Louis Poulsen approaches lighting as an extension of architecture, where the quality of light is considered as important as the form that contains it. Founded in Denmark, the brand is deeply rooted in Scandinavian design principles and is internationally recognized for its collaboration with pioneering designers such as Poul Henningsen. At Montreal Lighting & Hardware, Louis Poulsen represents a benchmark in design-led lighting—offering pieces that balance visual simplicity with exceptional light control.

At the core of the brand’s philosophy is a focus on glare-free, layered illumination, developed through a scientific understanding of how light interacts with surfaces and space. This is exemplified in the iconic PH series, where carefully positioned shades direct and diffuse light to create a soft, comfortable glow. Rather than relying on excess or ornamentation, each design is driven by function, proportion, and the relationship between light and environment. With a legacy that spans nearly a century, Louis Poulsen continues to evolve through contemporary collaborations while maintaining its foundational principles.
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