The Domus Maxi 40 is a 2.4m suspended LED linear pendant 48W, 4800lm, 4000K atCRI90, dimmable, in an aluminium body with a flatdiffuser.

Made to order, and no lead time is published

Domus asks you to call and confirm it. We will.

A mixed-length floor, calculated both ways

Benching is rarely one module. Both the load and the light now calculatein one pass.

• Six four-person benches and four two-person banks: load is(6 2.4 + 4 1.7) 20 = 424W, and total output is(6 4800) + (4 3400) = 42,400lm.
• Both are one line of arithmetic because every length runs the same20W/m strip at the same lm/W for a given colour temperature.
• The load figure is exact; the lumen figure is a starting point. Turningtotal lumens into lux needs the room’s surfaces and mounting height tell us andwe will do it.
• And the efficiency does not change with length, so there is no penalty formixing modules a point worth knowing, because with many ranges the longerversions are slightly more or less efficient.

Aluminium and 4000 K the deliberate pairing

• 4000K is the working default and the more efficient option 4800lm against 4320lm for the same 48W.
• Aluminium belongs against timber, concrete or exposed structure. Againstwhite plasterboard it is a 2.4m grey line a statement if you meant it.
• Take PRISMATIC over screens, and note the finish is the optical lever the diffuser TYPE is not, since flat, high and low all publish 4800lm and the same120 beam.
• And the material field will not find it: only the 24 of 71 linear listings whosetitle says Aluminium record a material value, and this one does.

The published specification

Where it works

• Four-person benching and 3.6m tables.
• Mixed-module floors no efficiency penalty for mixing.
• Timber, concrete and exposed soffits.
• Not against white plasterboard if the fitting should recede.
• Not anywhere damp IP20.

Specifying it

2.4m suspended LED linear pendant. 4800lm, 48W (100lm/W), 4000K,CRI90. 120 down-only. IP20. 2400mm. 3m drop. PLEX-COB-20W strip, integral dimmable driver,DALI and emergency on request. Anodised aluminium body, flat diffuser. 3-year replacement warranty. Ordercode MAXI-40-2.4M-FD-A-4K. SKUs 3032530328. 240V. A MIXED-LENGTH FLOOR NOW CALCULATES BOTH WAYS six four-person benches and four two-personbanks is (6 2.4 + 4 1.7) 20 = 424W of load and (6 4800) + (4 3400) = 42,400lm ofoutput. And efficiency does not change with length, so there is no penalty for mixing modules worthknowing, because with many ranges the longer versions differ.

Supplied and supported by Lights For You.

Questions

How do I calculate a mixed-length floor?

Both ways, in one pass. Load is total metres times 20, so six four-person benches on 2.4m fittings and four two-person banks on 1.7m is (6 2.4 + 4 1.7) 20 = 424W. Output at 4000K is (6 4800) + (4 3400) = 42,400 lumens. Both work because every length runs the same 20 watt per metre strip at the same lumens per watt for a given colour temperature.

Is there an efficiency penalty for mixing lengths?

No, and that is worth knowing because with many ranges the longer versions are slightly more or less efficient than the short ones. Here every length gives 100 lumens per watt at 4000K and 90 at 3000K, so you can size each bench module on its own merits without a lookup table or a compromise.

Can I turn the lumen total into a lux level?

Not from this page alone. The load figure is exact; the lumen figure is a starting point, and turning total lumens into lux needs the room’s surfaces, its geometry and the mounting height output falls off with the square of the distance. Tell us the floor plate, the ceiling height and the finishes and we will do it properly.

Which pendant for which bench?

1.2m for a single desk of about 1.8m at 2400 lumens; 1.7m for a two-person bank of about 2.5m at 3400 lumens; 2.4m for a four-person bench of about 3.6m at 4800 lumens. Those are the 4000K figures; at 3000K they are 2160, 3060 and 4320 respectively.

Is aluminium right against my ceiling?

Against timber, concrete or exposed structure, yes a metal tube is sympathetic and reads as part of the palette. Against white plasterboard it is a 2.4m grey line, which is a statement if you meant it and unfortunate if you did not. The white listing recedes into that ceiling instead.

Which finish and which diffuser type over screens?

Take the prismatic finish it refracts shallow-angle light back towards the vertical, which is what stops the fitting reflecting in a monitor. The diffuser type is not the lever: flat, high and low all publish 4800 lumens and the same 120 degree beam, so the type is an appearance and mounting-depth choice while the finish is what changes the optics.

Will it show as aluminium in a filter?

Yes, this one will it is one of the 24 of 71 linear listings whose title contains the word and therefore records a material value. The catch is that all 71 are the same aluminium extrusion, and the 47 black and white listings record nothing. So the field tracks the title rather than the product, and a filter hides listings that are aluminium.