Panter&Tourron cut an aluminium tube in half and made the seam glow as Lehni's Hall lamp

Panter&Tourron designed for Lehni, a Swiss aluminium workshop founded in 1922 whose plain, screw-together products include Andreas Christen's 1964 shelf; the studio extended that one-gesture thinking from sheet to tube, and from shelf to light.

Cut a single extruded aluminium tube in half lengthwise, turn one half, join them again around a dimmable LED — the open seam becomes a two-metre line of light.

Hall debuted at Milan Design Week 2026 as a limited edition with surface-technology firm BWB and Profiler Special Projects, its tubes anodised in vertical colour gradients at Capsule Plaza and Spazio Vento. For Lehni's own collection the gradients gave way to clear, black and black red; developed and produced with From Lighting, the 200 cm lamp stands on a 30 cm round base with a dimmable ~2700 K LED, colour rendering index above 90.

No sales figures were reported. Hall joined Lehni's small group of lights after the Milan Design Week 2026 debut, extending a lineage that runs from Christen's shelf, in the collection since 1970, into lighting.

Hall, a floor lamp by the Lausanne studio Panter&Tourron for the Swiss aluminium manufacturer Lehni, begins with the plainest industrial product: a single extruded aluminium tube of the kind that frames windows and edges shopfronts unnoticed. The tube is cut in half along its length, one half is turned, and the two are joined again around a rigid LED strip. Where the edges used to meet there is now a narrow, continuous seam of light two metres tall — the construction is not hidden behind the effect, it is the effect.

Both processes behind the lamp are older than they look: extrusion goes back to a 1797 patent, and the colour comes from anodising, first used industrially in 1923, which dyes the oxide layer itself rather than laying a coat on top. The restraint has a lineage. Lehni has made Andreas Christen's bent aluminium shelf since 1970, Donald Judd had his own furniture made by the company from 1984, and Hall applies the same single decisive step — here the cut — to light. The designers, Stefano Panterotto and Alexis Tourron, met at ECAL in Lausanne and founded their studio there in 2016.

At Milan Design Week 2026 Hall appeared as a limited edition developed with BWB and presented by Profiler Special Projects, part of the Swiss exhibition Shared Matter, with tubes anodised in vertical colour gradients that brought BWB's architectural surface work down to object scale. For Lehni's own collection the lamp is quieter — three even finishes — and was developed and produced with the Italian lighting company From Lighting; its dimmable warm LED makes it a working light, not only an object.

One gesture carries the whole design: cut, turn, rejoin — nothing else is added and nothing is disguised.

The material is used in its plainest industrial state, keeping the lamp continuous with Lehni's catalogue instead of a departure from it.

The lamp stays functional rather than sculptural: the seam exists to give light, with a dimmable warm LED and a colour rendering index above 90.

One precise gesture on the plainest industrial material can carry a whole design: the cut is not hidden behind the effect — the cut is the effect.

Lehni added Hall to its collection in quieter, even finishes after the gradient Milan debut, with development and production carried out alongside From Lighting. No commercial results were reported.