Triangle LED Lights: Four Shapes, Two Sizes, One Shared Edge

A triangle module is three lengths of the same 50 × 75 mm aluminium extrusion, mitred to three angles and closed with three corner blocks. The diffuser sits on the inner face of the frame, so the shape lights its own void rather than throwing light from a panel above it. That is the whole product, repeated at four different sets of angles.

It belongs to the wider modular lighting system, where the modules share edges rather than merely looking similar. Triangles are the part of that system where the geometry is easiest to see, and where the choice of model has the most consequence.

Three angles, three behaviours

Every triangle has three corner angles, and one of them decides how the module closes with its neighbours. An angle that divides 360° will tile around a point; an angle that does not will leave a gap. That single rule sorts the whole range:

60° closes in six. Six equilateral modules meeting at a point complete a full circle and leave a hexagon.
90° closes in four. Four right-angled modules meeting at a point leave a square, with the legs forming an X across it.
120° closes in three. Three obtuse modules meeting at a point leave an equilateral triangle.

This is why the range carries four triangles rather than one. A single angle can only produce one family of outlines. A gives you 60° at every corner; D gives you 120° at the apex; B and C each carry a 90° corner, which is what lets a 60° lattice turn a square corner without a special part.

The 1200 mm versions double every side and run at 80 W: A12 6.8 kg, B12 5.5 kg, C12 5.5 kg, D12 4.7 kg.

600 and 1200 mm: two families that do not mix

The number in the model name is the nominal edge — the one side the module offers to its neighbours. A06 has 600 mm on all three sides. B06 has it on the hypotenuse and 426 mm on the legs; C06 puts its 600 on the hypotenuse and 520 / 304 on the legs; D06 puts it on the base and 348 on the short sides. Every triangle in the 600 family has at least one 600 mm edge, and most have exactly one.

That edge is the interface. A 600 module joins any other 600 module along it — triangle to triangle, or triangle to the hexagon E12, which also carries 600 mm sides. The 1200 versions carry 1200 mm edges and form a second, separate family. A 600 and a 1200 cannot share an edge, because the shared side would be half the length of one of them, and no connector joins an edge at its mid-point.

The practical consequence is that size is chosen before shape, not after. Take 600 when the design is about detail, clusters or a lower connected load per point. Take 1200 when you want fewer joints, fewer drop points and 80 W in a single span. Once the drawing starts, the family is fixed — and the lighting load calculator will tell you whether the run you have in mind actually reaches the target illuminance before you commit to either.

E06 and E08 belong on the same page but in a different column. At 300 mm and 400 mm their edges match nothing else in the range, so they are specified as single fixtures, or paired with another of the same size. They are hexagons in the same visual language, not parts of a mixed run.

What six triangles make

Six A06 meeting at a point close a hexagon: 6 × 60° = 360°. The outline has 600 mm sides and measures 1200 mm across the corners, which is the same outline as the single hexagon E12 — built from twelve bars instead of six.

That is the real choice the catalogue offers. A hexagon in six parts gives you a star of internal spokes and arrives flat; a hexagon in one part is a plain ring with six corner joints. Both are 600-family, both hang the same way, and they cost differently in assembly time rather than in material.

The same arithmetic works the other way. Three D06 close an equilateral triangle with 600 mm sides — A06’s outline, made from the obtuse module. Four B06 close a 600 mm square, with their four legs forming an X across it. Once you have the rule, you can predict the outline before you open a catalogue.

Half modules and three-way joints

C06 is A06 cut in half. The numbers say so: A06 is 600 / 600 / 600 at 60°, and C06 is 600 / 520 / 304 at 30° / 90° / 60° — an equilateral triangle bisected through one vertex. B06 is the same trick played on a square: half of a 424 mm square has a 600 mm diagonal, and that diagonal is the shared edge.

This is what the right triangles are for. A 60° lattice has no square corners, so when a run has to finish flat against a wall, or turn through 90° in a room that is not a hexagon, one of these closes it. They are fillers, not features — and they are the two modules most often left out of a first drawing, which is usually why the first drawing does not quite fit.

Where two bars meet at an angle, an angle module does the work: 30°, 45°, 60°, 90°, 120° and 135° are all stocked, between 0.12 and 0.31 kg each. Where three bars meet at one point, a Y module takes them; four take a cross; two in line take a straight. In a triangle layout most nodes are two-bar corners, so the angle modules carry the geometry and the Y appears only where three edges genuinely converge.

One thing worth settling before the drawing is finished: every stocked module carries its own driver, so a six-triangle hexagon is six AC feeds, not one. On a ceiling with a void that is a minor line on the electrical drawing; on a bare slab it changes the cable route and sometimes the whole approach, which is the case covered in ceiling lights without a false ceiling. If the runs are long, ask for the component version instead — bars, joints and one remote driver — and the AC side collapses to a single point.

For a quote, send the outline at any scale, the family (600 or 1200) and the mounting height. We will come back with the module breakdown, the joint count and a schedule. The modular lighting planner will generate the layout and the parts list for you first, and the full range sits on the Slimme puzzelreeks page.