Design Icon: PH 5 Pendant Light
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Time to read 4 min
The PH 5 Pendant Light by Louis Poulsen is not only one of the most celebrated designs by Poul Henningsen, but one of the most celebrated light designs of the 20th century.
The Story Behind the PH 5 Pendant
Long before he became one of Denmark's most influential lighting designers, Poul Henningsen (1894–1967) was fascinated by the way light shaped a space. Growing up under the soft, atmospheric glow of gas lamps, he developed an appreciation for their warm, comfortable glow.
When electric lighting became commonplace in the early 20th century, he felt it fell short. The exposed bulbs of the time produced a harsh, glaring light that was uncomfortable to live with and lacked the subtle ambience he believed every interior should have.
Determined to find a better solution, Henningsen devoted much of his career to understanding how light behaved. Throughout the 1920s, he experimented with layered, multi-shade designs that carefully reflected and diffused light rather than allowing it to shine directly into the eye.
In 1924, he began collaborating with the Danish lighting company Louis Poulsen, leading to a series of ground breaking and unique designs.
This collaboration resulted in the PH system, an innovative approach to lighting that balanced function and aesthetics, lighting the room effectively but without uncomfortable glare.
This work laid the foundation for his masterpiece, the PH 5 Pendant Lamp.
How the PH Lamp works
The PH system is based on a mathematical approach to controlling light diffusion. The signature three-shade design that unites the collection directs light downwards and sideways, eliminating glare while creating ambient illumination.
It was first introduced in 1925 at an international exhibition in Paris, where it won a gold medal.
How the PH Lamp works
The PH system is based on a mathematical approach to controlling light diffusion. The signature three-shade design that unites the collection directs light downwards and sideways, eliminating glare while creating ambient illumination.
It was first introduced in 1925 at an international exhibition in Paris, where it won a gold medal.
The PH 5 Pendant Light: A design classic
Designed in 1958, The PH 5 Pendant Lamp was an evolution of his earlier multi-shade system. It was designed especially for the Langelinie Pavilion in Copenhagen.
The PH 5 gets its name from the 50 cm diameter of its main shade.
It was created to adapt to changing light sources, so the optimal light quality was maintained, despite variations in bulb technology.
Its innovation comes from light diffusion. Multiple layered shades direct light both downward and laterally, which eliminates glare. Additionally, the red and blue reflectors of the original design help balance the yellow tones of incandescent bulbs, providing a more natural, warm glow.
Made from high-quality spun aluminium, it is also lightweight, and its rolled aluminium struts provide structural support whilst maintaining a sleek, minimalist aesthetic.
Complete with a matte painted interior that helps to optimise light diffusion and a textile-covered cord, the attention is in the detail for this lamp.
The PH Collection Today
Still produced by Louis Poulsen today, The PH 5 Pendant Light is now available in a wide range different sizes and modern colourways, from classic white to bold contemporary hues.
The collection has expanded to include a number of coordinating designs by Poul Henninsen, such as the PH 3 1/2 - 2 1/2 Table Lamp, the PH 1/1 Portable Lamp and PH 80 Floor Lamp. You'll also find variations of the classic PH 5 design like the PH Snowball Pendant and PH Artichoke Pendant.
These pieces have become icons, making appearances in some of the most beautifully designed spaces around the world. Its down to each PH light's unique and instantly recognisable shape, which adds a mid-century character to the space, and the fact they make lighting such a comfortable experience.
How to Style the PH Collection in Your Home
The PH 5 Pendant Light is a real showstopper. It's ideal for drawing the eye to a focal point while creating a calm and considered atmosphere. This pendant really comes into its own when hung over a dining table. Its soft, glare-free light beautifully illuminates both the table and your guests, making every meal feel a little more special.
The PH 5 is equally at home above a kitchen island, where it provides practical task lighting without the harshness often associated with exposed bulbs. Hung individually or in a row, it brings a sculptural quality to the space while maintaining a warm, welcoming feel.
To carry the same design language throughout your home, pair the pendant with one of the PH table lamps. These produce the same glare-less light, making them ideal for sideboards, console tables or even bedside tables. Together, they create a cohesive look that celebrates Poul Henningsen's timeless approach to lighting while ensuring every room feels comfortable, balanced and inviting.
Written by Ian Fourie
As Data Manager at Holloways of Ludlow, Ian Fourie is the gatekeeper of detail. With a sharp eye for accuracy and structure, he ensures every product listing, specification and update is meticulously managed - a vital role in a fast-paced, design-led environment. His passion for precision extends into his personal taste, where a love for beautifully crafted design and the finer things in life shines through.
A former professional drummer, Ian still carries an impeccable sense of rhythm - though these days, it’s more often found in spreadsheets than on stage. He lives in a charming townhouse in Shrewsbury with two cats, a record collection to be proud of, and a garden he swears he'll tackle next weekend.
