The Domus SHADOW 2LT ADJ is a two-light adjustable exterior walllight 12V MR16, IP65, 90 tilt and 270swivel on each head, in seven finishes.

This sheet gets the lamp base right, and it explains why its siblings do not

• This datasheet reads: Lamp (Included): KEY-GU10-TRIO (240V)KEY-MR16-TRIO (12V) naming both lamps and mapping each to itssupply voltage. That is correct and complete.
• The one-light sheets in the same family name GU10 only, on products that are MR16.
• WE MEASURED THE SPLIT AND IT IS CLEAN:

• SO THE TWO-LIGHT SHEET IS A LATER REVISION. When Domus added the12V option to this family, the two-light documents were updated and the one-light documents werenot.
• THAT IS A STALE DOCUMENT RATHER THAN A WRONG ONE a distinctionthat matters, because it has a specific fix: reissue the one-light sheets from thistemplate.
• FOR THIS PRODUCT IT MEANS THE SHEET CAN BE READ AS PUBLISHED. It is12V, so the MR16 lamp applies, and that lamp is included.

Two heads, and the reason to take two rather than two singles

• Two independently adjustable heads on one body, one mounting point and onesupply.
• THE OBVIOUS USE IS UP AND DOWN a column of light on the wall aboveand below the fitting, which is the classic facade treatment. But because both headstilt and swivel independently, they can equally throw both ways along a wall, or one at the wall and one ata tree.
• THE PRACTICAL ARGUMENT OVER TWO SINGLE FITTINGS: one hole, one cable, one seal to makegood. On a rendered or masonry facade every penetration is a cost and a potential leak,so halving them matters more than the fitting price difference.
• The counter-argument is spacing. Two heads on one body are close together;if you want two pools of light metres apart, two single fittings are the right answer and no amount ofswivel will fix it.

2 35 W maximum and what to actually expect

The sheet gives 2 35W Max, which is the holder ceiling per head, nota consumption figure. The included tricolour MR16 lamps draw far less typicallyaround 5 to 7W each. SIZE THE 12V DRIVER ON WHAT YOU ACTUALLY FIT, not onthe maximum a driver sized for 70W when the load is 14W will work,but it is money spent and space taken for nothing. Do leave headroom, though: LEDdrivers dislike running at their absolute limit, and 20 to 30% spare is the usualallowance.

Tricolour lamps included set them together

Both lamps are switchable across three colour temperatures. ON A TWO-HEAD FITTING THAT IS A TRAP AS WELL AS A FEATURE: the two headsare inches apart and if they are set differently the difference is unmissable. Set both heads on every fitting to the same temperature at commissioning, and check it afterany lamp replacement a replaced lamp defaulting to a different setting is themost common way this goes wrong months later.

Seven finishes, two of them solid

Black, White, Titanium Silver, Copper, Stainless Steel, Bronze and Brass. 316 stainless steel and copper are solid; titanium silver is anodised; black and white arepowder-coated aluminium. Solid finishes have no coating to chip, so they weather ratherthan corrode which within a few kilometres of surf is the wholeargument.

What is published

Where it works

• Facade up-and-down columns the classic treatment.
• Where penetrations are costly one instead of two.
• Coastal take 316 stainless or copper.
• Not for two pools metres apart use two single fittings.
• Not with heads set differently inches apart, unmissable.

Specifying it

Two-light adjustable exterior wall light, IP65. 12V DC, MR16 lamp base, 2 35Wmaximum holder rating. Two tricolour lamps included. 90 tilt and 270 swivel per head. Seven finishes.12V DC driver required, not included. 3-year warranty. THIS SHEET NAMES BOTH LAMPS AND MAPS EACH TO ITS VOLTAGE “KEY-GU10-TRIO (240V)KEY-MR16-TRIO (12V)” which is correct and complete, and it explains why the one-light sheets in thisfamily name GU10 on MR16 products. WE MEASURED THE SPLIT: two-light sheets name both, 3 of 3; one-lightsheets, 0 of 3. A LATER REVISION THAT NEVER REACHED THE ONE-LIGHT DOCUMENTS. A stale document ratherthan a wrong one, with a specific fix.

Supplied and supported by Lights For You.

Questions

Which lamp does it take?

MR16, and this sheet says so correctly. It reads “Lamp (Included): KEY-GU10-TRIO (240V) KEY-MR16-TRIO (12V)” naming both lamps and mapping each to its supply voltage. This listing is the 12V version, so the MR16 lamp applies, and it is included.

Why do other Shadow sheets say GU10 on MR16 products?

Because they are a stale revision. We measured the split: two-light sheets name both lamps, 3 of 3; one-light sheets, 0 of 3. When Domus added the 12V option to this family, the two-light documents were updated and the one-light documents were not. That is a stale document rather than a wrong one a distinction that matters, because it has a specific fix: reissue the one-light sheets from this template.

Why take a two-light fitting over two singles?

One hole, one cable, one seal to make good. On a rendered or masonry facade every penetration is a cost and a potential leak, so halving them usually matters more than the fitting price difference. The heads adjust independently, so they can throw up and down, both ways along a wall, or one at the wall and one at a tree.

When would two singles be better?

When you want two pools of light metres apart. Two heads on one body are close together, and no amount of swivel will separate them that is a spacing problem, not an aiming one.

What driver do I need?

Size it on what you actually fit, not the maximum. The sheet gives 2 35W as the holder ceiling per head, but the included tricolour MR16 lamps draw far less typically 5 to 7W each. A driver sized for 70W when the load is 14W will work, but it is money spent and space taken for nothing. Do leave 20 to 30% headroom though; LED drivers dislike running at their absolute limit.

Anything to watch with the tricolour lamps?

Set both heads to the same temperature. They are inches apart, so a difference between them is unmissable and check it after any lamp replacement, because a replacement defaulting to a different setting is the most common way this goes wrong months later.

Which finish for a coastal site?

316 stainless steel or copper. Both are solid rather than coated, so there is no film to chip and they weather rather than corrode. 316 is the marine grade. Titanium silver is anodised, which does not chip either but is aluminium underneath; black and white are powder-coated.