The Domus MIRROR-20 is a 1,140mm tubular wall light 20W, 2,1002,300lumens, IP40,120 beam, switchable 3000/4000/5700K, in black,chrome, satin chrome or white.

A family that scales cleanly which is rarer than it should be

• THREE SIZES, THREE WATTAGES, AND EFFICACY CONSTANT WITHIN 2%. The lengths step by exactly 280mm each time.
• THAT MATTERS BECAUSE IT MEANS THE FIGURES CAN BE TRUSTED AND INTERPOLATED. This programme has found families where the middle size is dimmer than the small one, where asheet names the wrong model, and where a sibling’s dimension has been copied across. This one is internally consistent in every published field we cancheck.
• SO CHOOSE ON LENGTH, NOT ON OUTPUT. The three deliver the same light permillimetre; the only real question is what the fitting has to span.

Sizing it to a mirror the rule that matters

• A VANITY LIGHT SHOULD BE ABOUT TWO-THIRDS TO THREE-QUARTERS THE WIDTH OF THE MIRRORBELOW IT. Shorter looks undersized; a light wider than its mirror looks like amistake.
• SO THE 1,140mm MIRROR-20 SUITS A MIRROR OF ROUGHLY1,5001,700mm a double vanity. The 860mm suits about 1,1501,300mm and the 580mm suits about750900mm.
• MOUNT IT ABOVE THE MIRROR RATHER THAN ON IT, at roughly 1.92.0m to thecentre. Too high and the light skims the top of a face; too low and it is in theeye-line of anyone tall.
• A SINGLE LIGHT ABOVE A MIRROR CASTS DOWNWARD SHADOWS UNDER THE BROW, NOSE ANDCHIN. That is inherent to top lighting, not a fault in the fitting if the mirroris used for shaving or makeup, a pair of vertical lights either side is the better arrangement, or add themalongside this one.

CRI 80 the one specification to weigh for a vanity

• CRI 80 is adequate for general lighting. IT IS THE MINIMUM YOU WOULDWANT AT A MIRROR, WHICH IS THE ONE PLACE IN A HOUSE WHERE PEOPLE JUDGE COLOUR ON THEIR OWNFACE.
• SKIN TONES ARE WHAT LOW-CRI LIGHT RENDERS WORST, because the deep redsthat give skin its warmth are exactly what a cheap phosphor under-represents.
• IF MAKEUP IS APPLIED AT THIS MIRROR, IT IS WORTH KNOWING that a CRI 90+ fitting will renderit noticeably differently and that makeup matched under CRI 80 light will look differentoutdoors.
• THE COLOUR SETTING HELPS MORE THAN THE CRI HERE. 4000K is theusual right answer at a mirror: 3000K is flattering but misleading, and 5700K is accurate butunkind.

IP40 and what that permits in a bathroom

IP4X keeps out objects over 1mm; IPX0 means nowater protection at all. SO DESPITE BEING SOLD AS A VANITY LIGHT, THIS IS NOTA WET-AREA FITTING. It must go outside the zones where water may reach it, which yourelectrician will confirm against the current wiring rules. Above a basin mirror on a drywall is normally fine; over a bath or within a shower enclosure is not. The solids rating is the useful half: IP4X keeps out the dust and lint that would otherwisesettle inside a tubular diffuser and show as shadows.

Adjustable knuckles and a tubular diffuser

A ridged aluminium body with a tubular opal-frost polycarbonate diffuser and chromeadjustable knuckles. THE KNUCKLES ARE WHY IT WORKS AS A PICTURE LIGHT AS WELL AS AVANITY LIGHT: the tube rotates, so the 120 beam can be aimed at a wall below rather than straightout. Set the aim on site with the light on, not from the ladder before wiring a few degrees changes where the wash lands. The colour is set by a dip switch onthe side end cap, so it is accessible without dismantling thefitting. Not dimmable do not put it on a dimmer circuit.

What is published

Where it works

• Above a double vanity mirror 1,5001,700mm wide.
• As a picture light the knuckles let you aim it.
• Dry walls outside the wet zones.
• Not over a bath or in a shower IP40 is no water protection.
• Not as the only light for makeup add verticals either side.

Specifying it

Tubular LED wall light, 1,140mm. 20W at 220240V.2,100/2,200/2,300lm at 3000/4000/5700K switchable by dip switch. CRI 80, 120 beam. IP40.Ridged aluminium body, tubular opal-frost polycarbonate diffuser, chrome adjustable knuckles. Notdimmable. Black, chrome, satin chrome or white. 3-year warranty. THIS IS THE MOST INTERNALLY CONSISTENT FAMILY THIS PROGRAMME HAS MEASURED: three sizes at 10, 15and 20 W delivering 104, 106 and 105 lm/W, with lengths stepping by exactly 280 mm. So choose on LENGTHrather than output the three deliver the same light per millimetre, and the only real question is whatthe fitting has to span. A vanity light should be about two-thirds to three-quarters the width of themirror below it, which puts this 1,140 mm fitting on a mirror of roughly 1,500 to 1,700 mm. NOTE IP40MEANS NO WATER PROTECTION AT ALL despite the vanity name above a basin mirror on a dry wall is normallyfine, over a bath is not.

Supplied and supported by Lights For You.

Questions

How do I choose between the three sizes?

On length rather than output. The MIRROR-10, -15 and -20 deliver 104, 106 and 105 lumens per watt constant within 2% and their lengths step by exactly 280mm, so they give the same light per millimetre. The only real question is what the fitting has to span.

What size mirror does this suit?

Roughly 1,500 to 1,700mm a double vanity. The rule is that a vanity light should be about two-thirds to three-quarters the width of the mirror below it: shorter looks undersized, and a light wider than its mirror looks like a mistake. The 860mm MIRROR-15 suits about 1,150 to 1,300mm and the 580mm MIRROR-10 about 750 to 900mm.

Can I use it in a bathroom?

Outside the wet zones. IP40 means IP4X for solids and IPX0 for water no water protection at all, despite the vanity name. Above a basin mirror on a dry wall is normally fine; over a bath or within a shower enclosure is not. Your electrician will confirm the zone against the current wiring rules.

Is CRI 80 good enough at a mirror?

It is the minimum you would want, and a mirror is the one place in a house where people judge colour on their own face. Skin tones are what low-CRI light renders worst, because the deep reds that give skin its warmth are exactly what a cheap phosphor under-represents. If makeup is applied here, a CRI 90+ fitting renders it noticeably differently and makeup matched under CRI 80 light will look different outdoors.

Which colour temperature should I use?

4000K is the usual right answer at a mirror. 3000K is flattering but misleading, and 5700K is accurate but unkind. The colour is set by a dip switch on the side end cap, so it is accessible without dismantling the fitting.

Will it light my face evenly?

Not on its own. A single light above a mirror casts downward shadows under the brow, nose and chin that is inherent to top lighting rather than a fault in the fitting. If the mirror is used for shaving or makeup, a pair of vertical lights either side is the better arrangement, or add them alongside this one.

Can it be used as a picture light?

Yes, and that is what the chrome adjustable knuckles are for the tube rotates, so the 120 degree beam can be aimed at a wall below rather than straight out. Set the aim on site with the light on rather than from the ladder before wiring, because a few degrees changes where the wash lands.