The Musan SQ.24 is an 84mm square recessed step and wall marker in black sandaluminium 24V, 3W, 18lm at 3000K, ratedIP54.

Read this before you buy: it runs on 24volts, and thetransformer is not included.

This is a ClassIII low-voltage fitting. It cannot be wired straightto mains. You need a 24V DC driver or transformer, sized for the totalload of every Musan on the run, and it is not supplied with the light. Nothing on ourold page said so.

The upside is real: low-voltage cabling is safer to run through a garden, and asingle transformer can feed a whole line of markers from one point.Tell us how many you are fitting and we will size the transformer with you.

18 lumens what that actually is

We would rather be plain about this than let you find out on site.18lumens is a marker, not a light.

• It shows you where the step is. It does not light the step.
• Walking a path lit by Musans, you see a line of soft glowing squares and the groundimmediately at each one. You will not read by it and you will not find a dropped key.
• At 3W for 18lm the efficacy is 6lm/W far below every other fitting we have measured in this catalogue, and that is not afault. A marker is deliberately shielded and deliberately dim, because the point isorientation without glare in the dark.

Bought for what it is, it is excellent. Set into the risers of a flight of stepsor the wall of a path, a line of these is what makes a garden navigable at night without floodlightingit. Bought as a path light, it will disappoint you ask us about thespike and bollard lights in this catalogue instead, which run to hundreds oflumens.

Spacing and placement

• On steps one per riser on a short flight, or every second riser on a longone. Set them to one side, not centred, so the shadow of your own foot does not fallacross the next tread.
• Along a path wall 2m to 3m apart reads as acontinuous guide; wider than that and it reads as scattered dots.
• Low these belong at ankle to knee height. Mounted at eyelevel a marker is just a bright spot you look at.

IP54 what it covers and what it does not

IP54: dust protected and shielded against splashing water from anydirection.

• Rain, garden sprinklers and hosing down are fine.
• It is not IP65 and not IP67. Do not set it where it will behit by a pressure washer, where water pools against it, or anywhereit could be submerged the bottom of a driveway that floods, a garden bed thatholds water, or a pool surround.
• Because it is recessed, the detailing behind it matters: make sure the cavitydrains and does not become a cup that holds water against the back of the fitting.

8484mm, 32mm deep, 0.2kg small and light, but it is recessed, so the 32mm depth is the figurethat matters: your wall, riser or post needs that much behind the face.Aluminium and polycarbonate, warm 3000K, CRI above80, not dimmable. The LED is integrated and included. Amatching round version is available ask us.

Where it works

• Step risers, path walls, retaining walls and low garden walls.
• Entries and driveways, as orientation rather than illumination.
• Indoors too stair risers, a hallway skirting, a home cinema aisle.
• You need a 24V transformer, and it is not supplied. Tell us the quantity.
• 18lm is a marker. If you want to light a path, ask us about spikes and bollards.

Specifying it

8484mm face, 32mm recess depth, 0.2kg, inaluminium and polycarbonate, black sand. Integrated3W LED giving 18lm at 3000K, CRI>80, included, not dimmable. 24V DC ClassIII, low voltage. A transformer is REQUIRED and is NOTsupplied. IP54 dust protected, splash resistant; not for pooling water orsubmersion. Warranty is three years, as a replacement warranty.

Supplied and supported by Lights For You.

Questions

Can I wire it straight to mains?

No. It is a 24V Class III fitting, so it needs a 24V DC driver or transformer sized for the total load of every Musan on the run and that transformer is not supplied with the light. Nothing on our old page said so. Tell us how many you are fitting and we will size it with you.

Is 18 lumens enough to light a path?

No, and we would rather be plain about it. 18 lumens shows you where a step is; it does not light the step. A line of Musans reads as soft glowing squares that make a garden navigable without floodlighting it you will not read by it or find a dropped key. If you want to light a path, ask us about the spike and bollard lights instead, which run to hundreds of lumens.

Why is the efficacy so low?

Six lumens per watt, which is far below anything else in this catalogue and it is not a fault. A marker is deliberately shielded and deliberately dim, because the point is orientation without glare in the dark. Most of the light a general fitting would throw outwards is intentionally not thrown here.

How far apart should I space them?

Along a path wall, 2 to 3 metres reads as a continuous guide; wider and it reads as scattered dots. On steps, one per riser on a short flight or every second riser on a long one, set to one side rather than centred so your own foot does not shadow the next tread. Keep them at ankle to knee height.

Can it get wet?

IP54 dust protected and shielded against splashing from any direction, so rain, sprinklers and hosing down are fine. It is not IP65 or IP67: keep it away from pressure washers, from places where water pools against it, and from anywhere it could be submerged. Because it is recessed, make sure the cavity behind it drains rather than holding water.

How deep does the cavity need to be?

32mm behind an 84 by 84mm face. It is a recessed fitting, so that depth is the figure that decides whether your wall, riser or post can take it.

Is there a round version?

Yes the Musan comes as a round and as this square. Ask us and we will get you the round.