The Domus DECO-13 is a 13W deep-set recessed downlight with an anti-glare frameand opal diffuser, DALI dimmable, in round or square andwhite, black or chrome. Cutout 90mm; fascia 110mm;38mm deep.

Two figures on this listing disagree with the datasheet, and both changewhat you would specify.

700K is a visible difference at the cool end, and the two lumen sets do notoverlap at any setting. We have published the datasheet figures, which are themanufacturer’s own.

Either way it is a bright fitting around 880lm from 13W with a90 spread. If the colour temperature is load-bearing on your specification,ask us and we will get it confirmed in writing.

Round or square, at one cutout

• Both shapes take the same 90mm hole a square fascia over a roundaperture.
• Which means you can mix them, or change your mind after the ceiling is cut. A squaretrim reads as deliberate in a modern ceiling; a round one is the safer default and hides rotation.
• A square trim must be set out square to the room. Round trims forgive rotation;these do not, so a run needs setting out to the walls rather than by eye.
• Three finishes white, black and chrome. Chrome is unusual on a downlight andit will show fingerprints and dust at the aperture more than a matt finish.

The numbers

• 850lm at 3000K, 880lm at 4000K, 889lm at 5000Kfrom 13W the datasheet’s figures.
• The spread across settings is under 5%, so the colour choice barely changes thelevel. That is unusual and useful: you can pick the colour for the room without recounting fittings.
• 90 beam a wide spread, so fewer fittings cover a floor.
• CRI 83, Epistar SMD. The same unusually precise figure as the BOOST-10, where therest of this catalogue rounds to 80.
• 50,000hours. 38mm deep shallow, which suits atight void or a bulkhead.

Its IP44 carries a condition

The datasheet’s wording is precise: “IP44 rating is from the underside of the downlight onceinstalled into the ceiling.”

• It means protection from the room side a bathroom ceiling outside the showerzone, a laundry, a covered alfresco, subject to your electrician and AS/NZS3000.
• It does not mean the back of the fitting is sealed in the void, and it does not applybefore installation.

Dimming: read the qualifier

The datasheet says “tested on the Domus dimmer series. May work on others but nottested.”

• That is materially weaker than “dimmable”, and our record shows only the word.
• This listing is also the DALI version, which dims over the DALI bus rather than froma wall dimmer so on a DALI installation the dimmer caveat does not apply, and on a non-DALI onethis is the wrong fitting.
• Tell us the control system and we will confirm the right variant.

Two things on its datasheet worth knowing about

• It carries a “4.5 Star Rating 11/2013” an energy rating from November 2013. That is over a decade old, and rating schemes and baselines have moved since.Do not use it in a current energy calculation.
• The cutout label is corrupted in the document we hold, though the figure itself(90mm) is legible and corroborated by the fascia and depth.

Where it works

• Retrofit into existing 90mm ceilings the standard Australian aperture.
• Shallow voids and bulkheads 38mm deep.
• Buildings with a DALI control system.
• Bathrooms outside the shower zone, laundries IP44 from the underside.
• Not without a DALI system ask us about the non-DALI variants.
• Confirm the coolest colour setting with us if it matters: 5000K or 5700K.

Specifying it

13W deep-set recessed LED downlight, anti-glare frame with opal diffuser, DALI.Cutout 90mm. Fascia 110mm, 38mm deep. Round or square; white, black orchrome. Output 850 / 880 / 889lm at3000K / 4000K / 5000K per the datasheet our recordgives 800 / 850 / 900lm and a coolest setting of 5700K.90 beam, CRI 83, Epistar SMD, 50,000hrs,aluminium. 240V AC.

IP44 from the underside once installed not a sealed rating for the void. Dimming tested on the Domus dimmer series only; this is the DALI variant, which dimsover the bus. Its datasheet’s “4.5 Star Rating 11/2013” is over a decade old do not useit in a current energy calculation. Warranty 3 years.

Supplied and supported by Lights For You.

Questions

Is the coolest setting 5000 K or 5700 K?

The datasheet says 5000K and our record says 5700K, and we have published the datasheet figure because it is the manufacturer’s own. 700K is a visible difference at the cool end enough to matter if you are matching other fittings in the same space. If the colour temperature is load-bearing on your specification, ask us and we will get it confirmed in writing.

How bright is it?

Around 850 to 889 lumens depending on the setting, from the datasheet. Our record gives 800, 850 and 900, and the two sets do not overlap at any setting we have published the datasheet’s. What is useful either way is that the spread across the three colours is under 5%, so you can pick the colour for the room without recounting fittings.

What size hole does it need?

90mm the standard Australian downlight aperture and both the round and square versions take it, since the square fascia sits over a round hole. That means you can mix the two shapes, or change your mind after the ceiling is cut. The fascia is 110mm and it is only 38mm deep, which suits a tight void or a bulkhead.

Do I need a DALI system?

For this listing, yes it is the DALI variant, which dims over the DALI bus rather than from a wall dimmer. Without a controller or gateway there is nothing to send it a level. If you are working with ordinary wall dimmers, ask us about the non-DALI variants of the DECO-13; note that the datasheet’s dimming caveat “tested on the Domus dimmer series, may work on others but not tested” applies to those rather than to this one.

Can it go in a bathroom?

Outside the shower zone. The datasheet’s wording is worth quoting exactly: IP44 “from the underside of the downlight once installed into the ceiling”. That means protection from the room side rather than a sealed fitting in the void, and it does not apply before installation. Subject to your electrician and the zones in AS/NZS 3000.

Should I choose round or square?

Both take the same 90mm hole, so it is purely visual. A square trim reads as deliberate in a modern ceiling; a round one is the safer default and forgives rotation. If you go square, set the run out to the walls rather than by eye square trims show rotation in a way round ones hide, and an out-of-square run is visible from across the room.

What is the “4.5 star rating” on the datasheet?

An energy rating from November 2013, and we are flagging it because it is over a decade old. Rating schemes and their baselines have moved since, so it should not be used in a current energy calculation. If you need a current efficiency figure, ask us and we will get one from Domus rather than have you cite a 2013 star rating.