The Domus BLOC-42 is a surface-mount aluminium LED profile with awrap-around frosted PMMA diffuser, innatural clear anodised, black or white.

Confirm the length with us before ordering. Our sources disagree.

Two sources say 2.5metres and the title says one. That is a two-and-a-half-folddifference on a part sold by length, so it changes both the price comparison and the number of pieces arun needs. Tell us the run length you need and we will confirm what ships before youorder.

The section is also not recorded. The datasheet gives the profile as42.5mm wide 56mm high; our record’s fields hold 2,500mm forboth width and length and 19.6mm for height, none of which describes the extrusion.Work to 42.5 56mm.

A deep profile, and why that is the point

• 56mm deep is substantial more than eight times the depth of a slim177mm profile.
• Depth is what hides LEDs. The further the diffuser sits from the strip, the morecompletely the individual diodes disappear so a deep profile can take an ordinary SMD strip andstill read as a continuous line, where a shallow one needs a dotless COB strip to manage it.
• The wrap-around diffuser covers the face and both sides, so the profile glows as abar rather than as a lit slot. That is a deliberately visible detail, not a concealed one.
• At 42.556mm it is an object on the surface, not a shadowline. Specify it where you want to see a lit bar a wall, a ceiling run, a joinery face not where you want the light to appear from nowhere.

What the profile does for the strip

• Heat. Extruded aluminium 6063 is a heatsink. Strip run bare against plasterboard ortimber runs hotter, and heat is what shortens strip life and shifts its colour.
• Protection. Domus’s own description makes the point that the profile keeps the LEDsfree of foreign objects and vapours which matters more in a workshop, a garage or a kitchen thanpeople expect.
• Invisible screw mounting. The fixings are concealed within the profile, so asurface-mounted run shows no screws on the face.
• It keeps the line straight. Adhesive strip on a bare surface wanders; an extrusiondoes not.

Finishes and accessories

• Natural clear anodised the standard finish, and it sits well against metal,stone and concrete.
• Black and white powder coated.
• Custom powder coating is available per the datasheet, which is unusual and worthknowing on a project matching a specific colour. Ask us for lead times.
• End caps (silver) and wire suspensions are supplied as accessories, sold each.
• Every cut length needs its own end caps. Two runs from one length need four caps,not two.

The strip, the driver and the width question

• The LED strip and its driver are both separate purchases.
• No source records the maximum strip width this channel accepts. A 42.5mmouter profile is generous, so most strips will fit but “most” is not a specification.Tell us which strip you are running and we will confirm with Domus.
• Because it is deep, you have a real choice of strip here. A dotless COB gives thecleanest result; an ordinary SMD strip will also disappear behind 56mm of depth, which it would notin a shallow profile.
• Plan the profile lengths and the strip cut increments together. A COB strip cutsevery 25mm; setting the extrusion out first and the strip afterwards is how a join ends up in thewrong place.

Where it works

• Surface-mounted ceiling and wall runs where a lit bar is the intended look.
• Suspended runs wire suspensions are available.
• Workshops, garages and kitchens the diffuser keeps vapours and dust off the LEDs.
• Where an ordinary SMD strip must read as a continuous line the depth does the work.
• Not a light the strip and driver are separate.
• Not a concealed shadow-line detail it is 42.5 56mm on the surface.

Specifying it

Surface-mount LED profile, extruded aluminium 6063, with a wrap-around frosted PMMAdiffuser. Profile section 42.5mm wide 56mm high per thedatasheet not recorded in any product field. Length: the title says 1m, the record and the datasheet both say 2,500mm continuous.Confirm with us before ordering.Finishes: natural clear anodised, black or white; custom powder coating available.End caps and wire suspensions supplied as accessories, sold each.Invisible screw mounting for surface applications.

The LED strip and its driver are separate purchases, and no source records the maximum stripwidth this channel accepts. Our record also carries a voltage, an AC/DC field and acolour-changing flag on what is a passive extrusion. Warranty 3 years.

Supplied and supported by Lights For You.

Questions

Is it 1 metre or 2.5 metres?

Confirm with us before ordering the sources disagree. The product title says 1m; our record and the datasheet both say 2,500mm continuous. That is a two-and-a-half-fold difference on a part sold by length, so it changes both the price comparison and the number of pieces your run needs. Tell us the run length you want and we will confirm what actually ships.

How big is the profile itself?

42.5mm wide by 56mm high, from the datasheet and it appears in no product field. Our record holds 2,500mm for both width and length, which is the length in two places, and a height of 19.6mm that matches neither source. Work to 42.5 56mm, and tell us if the space is tight and we will measure one.

Does it come with an LED strip?

No. A profile is a channel an aluminium extrusion with a diffuser, and here with end caps and wire suspensions available as accessories. The LED strip goes inside it and is bought separately, along with its driver.

Which strip should I use in it?

You have more choice here than in a slim profile, because 56mm of depth hides the LEDs well: a dotless COB strip gives the cleanest result, but an ordinary SMD strip will also read as a continuous line behind this much depth, which it would not in a 7mm profile. What no source records is the maximum strip width the channel accepts a 42.5mm outer profile is generous, but “most will fit” is not a specification. Tell us which strip and we will confirm.

Will I see the fixing screws?

No the mounting screws are concealed within the profile, which is one of the reasons to use an extrusion rather than sticking strip to a surface. The wrap-around diffuser then covers the face and both sides, so the profile reads as a lit bar with nothing visible holding it up.

Can I get it in a custom colour?

Yes the datasheet offers custom powder coating, which is unusual and genuinely useful on a project matching a specific colour. Ask us for lead times, because a custom finish is not a stock item and it will add time to the order.

How many end caps do I need?

Two per finished run, not two per length ordered. If you cut one length into two runs you need four caps. They are sold each, along with the wire suspensions, so tell us the run layout and we will count them rather than have you find out on the day.