Vertical Pendant Light: A Specification Guide | MOSS

A vertical pendant light answers a question most lighting schemes never ask: what happens to the space above head height. In a stairwell, an atrium, or a double-height living room, the volume that gives the room its character is drawn in section, not in plan. Yet pendant selection almost always happens on the floor plan, which is how so many tall rooms end up with a single oversized fixture hovering at an arbitrary level, lighting the ground floor and ignoring everything else.

This guide sets out how MOSS Objects composes luminaires along the vertical axis, across the Emily and Dune collections, and what an interior architect needs to fix early in a specification: drop length, termination height, sightlines from every level, and access after handover.

When a vertical pendant light is the right answer

The test is straightforward. If the space is read from more than one level, or from directly below at a steep angle, a vertical arrangement earns its place. Stairwells and half landings, entrance halls with a gallery above, lift lobbies in hospitality, and double-height living rooms all share the same condition: people see the luminaire from several heights, and each of those views is a different composition.

A horizontal cluster does not survive that condition. Seen from a landing above, it reads as a flat plane of canopies and cables. Seen from directly underneath, it becomes a ceiling of shade undersides. It was composed for one viewpoint and only works from that viewpoint. A vertical arrangement presents a different silhouette from every level, and it gives the eye something to follow between them.

The inverse matters just as much. In a room of standard height, roughly under three metres, a vertical fixture rarely helps. There is no section to fill, the lowest element ends up in the way, and the result reads as a compressed version of something meant to be tall. In those rooms a single pendant or a horizontal group is the better instrument. Vertical formats should be specified because the architecture asks for them, not because they photograph well.

Reading the section: drop, termination and sightlines

Four variables decide whether a vertical scheme works, and all four are set in section rather than in plan.

Drop length is the distance from the underside of the canopy to the lowest element. It is not the ceiling height minus a guess. Fix it against the finished floor level below and the ceiling build-up above, both of which move during construction. Specify the final drop once the ceiling zone is confirmed, and keep the cable specification open until that point.

Termination height is where the lowest shade sits. This is the number that gets challenged on site, because it decides whether people walk under the fitting, whether it obstructs a stair flight, and whether it will be caught during furniture delivery. In a stairwell, the lowest element should be visible and legible from the lowest landing without entering the walking line of the flight. Where the luminaire hangs in an open void rather than above a floor, termination can sit much lower, and usually should.

Sightlines are the part most often skipped. Draw the fixture from every level it can be seen from, including the view down from the top landing. A composition that resolves beautifully from the ground floor can look arbitrary from two storeys up, where the viewer sees the tops of the shades and the suspension rather than the lit faces.

Rhythm between elements is the fourth variable, and it is a design decision rather than a technical one. Even spacing reads as calm and architectural, which suits a formal stair or a lobby where the luminaire should support the geometry rather than compete with it. Uneven spacing, with elements gathered towards the top or the bottom, creates movement and works better in a domestic void where the fixture is the event in the room. Both collections allow spacing to be set at drawing stage, so decide it deliberately rather than accepting a default.

Emily in vertical composition: V6 to V12

Emily is a collection of handmade steel shades, organic and roughly pyramidal in silhouette, developed from the James Bond Islands series by Andreas Gursky, in which land forms appear to float above a flat horizon. The vertical variants, Emily V6, V8, V10 and V12, apply that logic to the section of a room. The number denotes the shade count, and V12 is the longest composition in the range.

Each shade is formed by hand and closed with a plexiglas diffuser ground individually to fit that shade, so the light is directional and travels downward rather than spilling sideways. In a vertical arrangement this is the functional argument, not only the aesthetic one. Each shade lights the level it passes. A stairwell lit by one fixture at the top delivers everything from a single source and leaves the lower flights in its shadow. A vertical Emily distributes the same task across six to twelve points, so each storey receives light at close range and at a comfortable intensity.

The frame is waxed oak, the canopy is steel, and the electrical fitting is E27 for European and Asian markets or E26 for the United States and Canada. Standard finishes are anthracite semi-matte, white semi-matte, black high gloss, gold semi-matte, copper semi-matte and dark bronze semi-matte, with custom finishes available on request. The Oxid variants are formed from pre-aged steel plate, which makes every shade unique and rules out exact colour matching between pieces. Emily received the German Design Award in 2019.

Choosing between the lengths is a question of void height rather than taste. As a working method, establish the termination height first, then the highest point at which the composition still reads from the lowest floor, and select the model that fills the distance between them without crowding the ceiling or leaving a wide empty band at the top. A V6 in a nine-metre atrium looks like an error of judgement, and a V12 in a four-metre room is one. Model pages carry the dimensional data for each length, including the Emily V8, which is the format most often specified for stair cores.

Dune Vertical Line and Vertical Cluster

Dune, designed by Daniel Becker and Elisa Bakaniev, is a modular luminaire rather than a fixed product. Its geometry comes from dune landscapes, where one curve dissolves into the next and volume is defined by transition rather than edge. Shades are pressed from aluminium sheet and joined at their outermost points by machined connectors, which lets the same components describe a curve, a cluster, a spiral or a vertical line.

Two configurations work in the vertical axis. Dune Vertical Line is the slimmest reading of the system, twisting along a straight axis in 4, 6 and 8 shade lengths, the longest being the Dune 8 Vertical Line. It suits narrow voids, stair cores, and the tight zone beside a glazed facade where a wider composition would crowd the glass. Dune Vertical Cluster takes more volume, in 6, 8 and 10 shade compositions starting with the Dune 6 Vertical Cluster, and is the better choice where the void is generous enough for the fixture to be seen in the round.

The distinction between the two is footprint rather than length. Vertical Line stays within a narrow envelope in plan, so it can be positioned close to a wall, a balustrade or a glazed elevation without visually touching it. Vertical Cluster occupies a wider plan area and reads as a mass rather than a line, which is what makes it effective in the centre of a generous void and difficult in a tight one. Where a stair winds around a fixture, plan footprint is usually the constraint that decides the format.

Dune carries integrated LED at 2700 K with a colour rendering index above 90, and the diffuser is polycarbonate. The canopy is steel and houses the driver, so it is a functional component rather than a cover plate. Control is available as Triac, DALI or 0 to 10 V, and the choice needs to be agreed with the electrical contractor before the canopy is set, not afterwards. Finishes are silver anodised, silver polished, gold tone, copper tone and dark bronze tone. Silver anodised is the anodised finish in the range, while the tones are lacquered on aluminium, a distinction that matters when a specification calls for anodising by name. Dune received the iF Design Award in 2025.

Specification notes before the drawing is issued

Access is the first item, and the one most often deferred. A luminaire at seven metres in a stairwell has to be cleaned, and in the case of Emily, relamped. Agree the access method during design, whether that is a mobile tower, a lowering device or scheduled scaffold, and confirm that the void geometry admits it. Dune uses integrated LED, so its maintenance interval is far longer, which is a legitimate reason to prefer it in a difficult void.

Second, the canopy. Vertical formats concentrate their entire load and all their cabling at a single ceiling point, so the structure above that point has to be confirmed rather than assumed, particularly in a plasterboard soffit or a suspended ceiling. Mark the exact canopy position on the reflected ceiling plan and keep it coordinated with sprinklers, smoke detection and any other services in the ceiling void.

Third, finish and light. In a tall space the luminaire is seen against a bright wall, a window, or the sky through a rooflight. A high gloss finish will pick up every reflection in that field, while a semi-matte surface holds its form. This is worth testing with a physical sample at the actual orientation rather than judging it from a screen.

Finally, lead time follows from all of the above. Because the shades are made and finished to order, and because drop lengths are cut to the project rather than to stock, the specification benefits from being closed early even when the installation date is distant. Late changes to drop or finish remain possible, but they consume the float that would otherwise absorb delays on site.

For a drop study, sample finishes, or a configuration proposal for a specific void, contact MOSS Objects directly. A section drawing showing the ceiling height and the levels from which the luminaire will be seen is usually enough to begin. The full collection is online, and every luminaire is made to order in Berlin.