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A dark red Panthella 160 Portable Lamp sits beside a woman in a warm living room with brown furniture and art. © 2026 Louis Poulsen.

North of Berlin, in the district of Reinickendorf, interior content creator and owner of the interior brand Haus of Hart, Sarah Hartmann transformed a classic 70-square-meter apartment into a lively, colourful space. Full of curated design pieces, DYI elements, and lots of 70s aesthetic, the typical Berlin Altbau feels anything like it.

PH Snowball pendant and Panthella Floor lamp in warm yellow dining room, © 2025 Louis Poulsen.

“My style is a wild mix of the vibe of the 70s, space age design, Wes Anderson films or, as my brother once said, like Disney Land for adults. I pay particular attention to vibrant colour combinations with creative quirks paired with clever design, which puts you in a good mood.”

Panthella 160 Portable in White on shelf against yellow curtains, © 2025 Louis Poulsen.

Lighting plays an important role in her style, as it goes beyond illumination itself. Each lamp is carefully curated to emphasise a specific mood, style, colour combination – or serve a specific function.

“I am a big fan of portable lights because I redecorate almost every day, so I can easily move them from A to B and implement new decorating ideas without getting tangled up in cables. This means I am no longer limited in my styling ideas and can get light wherever I feel it is needed.”

Living room with PH Snowball pendant and Panthella lamps complementing red and yellow decor, © 2025 Louis Poulsen.
Sarah Hartmann seated under PH Snowball pendant at red dining table, © 2025 Louis Poulsen.
Panthella 160 Portable in Burgundy on shelf with sunflowers, © 2025 Louis Poulsen.

“But the Panthella is still my absolute favourite, which is why there are more of them in my home than I can count.

The shape of this design classic instantly puts me in a good mood. It fits into any environment without being too overpowering, yet still makes a clear design statement.”

Three Panthella 160 Portable lamps in Chrome Blue Opal, White, and Burgundy on shelf, © 2025 Louis Poulsen.