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

Made to order, and no lead time is published

Domus asks you to call and confirm it and on a fitout with a move-indate that belongs at the start of the programme. We will.

What goes on the drawing and what has to be asked

• Seven items are published and four are not which makes the ask ashort, specific enquiry rather than an open-ended one.
• Two of the four are needed before the ceiling closes the spacing and theweight. Raise them early.
• The UGR only matters if your specification names a glare limit no Domus linear listing publishes one.

And two things worth writing on the handover sheet

• There is no lamp. This is an integrated LED, so when it fails the fittingis replaced and a maintenance contractor who assumes a tube will findnone. The 3-year warranty is replacement type, which is the right cover.
• DALI and emergency are ordered, not retrofitted. If the building laterwants either, it is a new fitting rather than an upgrade worth recording so afuture decision is made with that in mind.

The published specification

Where it works

• Four-person benching and 3.6m tables.
• Open-plan floors with white or grid ceilings.
• Meeting rooms and reception areas.
• Not commissioned until the dimming protocol is settled at order time.
• 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. White body, flat diffuser. 3-year replacement warranty. Order codeMAXI-40-2.4M-FD-W-4K. SEVEN ITEMS GO STRAIGHT ONTO THE DRAWING AND FOUR HAVE TO BE ASKED suspension spacing, weight,rated lifespan and a UGR figure. That is a short, specific enquiry rather than an open-ended one, and twoof the four are needed before the ceiling closes. Write on the handover that there is no lamp, and thatDALI and emergency are ordered rather than retrofitted.

Supplied and supported by Lights For You.

Questions

What can I put straight on the drawing?

Seven things: 4800 lumens at CRI90 and 4000K, 48W at 240V with load calculated as metres times 20, a 2400mm length, a 120 degree down-only beam, IP20, a 3m suspension drop supplied, and a 3-year replacement warranty. Four have to be asked for the suspension-point spacing, the weight, the rated lifespan and a UGR glare figure.

Which of the missing four are urgent?

The spacing and the weight, because both are needed before the ceiling closes: a 2.4m fitting takes two suspension points into structure, and the weight decides whether the fixing is a joist, a noggin or a proprietary anchor. The lifespan matters for a maintenance schedule rather than the install, and the UGR only if your specification names a glare limit no Domus linear listing publishes one.

What should go on the handover sheet?

Two things. That there is no lamp this is an integrated LED, so when it fails the fitting is replaced, and a maintenance contractor who assumes a tube will find none. And that DALI and emergency are ordered rather than retrofitted, so if the building later wants either, it is a new fitting rather than an upgrade. Recording that means a future decision is made with it in mind.

Can DALI be added later?

No the DALI driver is built into the fitting, so it is an order-time choice. On a made-to-order product with no published lead time, that means the decision has to be made before the specification is issued. Tell us the control system and whether emergency is required and we will confirm the right variant with Domus.

How many will I need for a floor?

About three per 20 square metres for a 320-lux general office at ordinary utilisation and maintenance factors, since each gives 4800 lumens. Load is metres times 20, so six fittings is 288W. Tell us the floor plate, the ceiling height and the surfaces and we will do it properly.

Is CRI90 worth having in an office?

It is better than the requirement rather than essential. Most office specifications set CRI80 as a floor, and CRI90 clears it comfortably which matters where anything is inspected, printed material is checked or samples are compared. In a purely screen-based office it is a bonus rather than a driver.

Can I use it in a damp space?

No IP20, dry interior only. For bathrooms, covered outdoor areas, commercial kitchens or unsealed bays, ask us about the Domus IMPACT range at IP66 and IK10.