The Domus DRIVER-24V-IP67 is an outdoor non-dimmable 24V DC constant-voltage LEDdriver IP67, in eight wattages from 20W to500W, with 1m flex and plug.

Why 24 V rather than 12 V the point no listing makes

• At the same power, 24V draws half the current of 12V. Half the currentmeans half the volt drop over the same cable.
• Volt drop is the usual reason a long low-voltage garden run disappoints thefittings at the far end are visibly dimmer than those at the near end, and once it is buried there isnothing to do about it.
• So on a long run, 24V is the better system, or it lets you use smaller cablefor the same result.
• But the fittings must be 24V. A 12V fitting on a 24V supply willfail immediately. Check every fitting on the run before choosing the voltage thisis a system decision, not a driver decision.
• Domus makes IP67 drivers in both, so the choice is genuinely open at designstage.

Its datasheet lists ten wattages and the listing sells eight

• The 30W and 240W are missing from the dropdown.
• That is a stocking gap rather than a data error the sizes exist, and aspecifier reading the datasheet will design around one and then find it unavailable.
• Ask us if you need either and we will find out whether Domus can supply it.
• Otherwise round up: use the 60W where the sheet suggests 30W, and the300W where it suggests 240W. Headroom is never wasted on a driver.

IP67, and the working range

• Dust-tight and rated for temporary immersion a genuine garden-bedrating.
• Working range 40C to +60C, 2090% RH non-condensing. The +60C ceiling matters in Australia: a driver in an enclosure in full summersun runs far hotter than the air around it.
• Temporary immersion is not permanent. Mount it above the water line or in a drainedenclosure.

Protection and wiring

• Secondary-side short-circuit protection a cable cut by a spade shuts thedriver down rather than damaging it.
• Thermal overload, over-temperature and over-voltage protection.
• Efficiency up to 89%; PF >0.95. 150 44 32mm,240g.
• Parallel wiring, never series. Size with about 20% headroom.
• At 500W and 24V that is over 20A still a real cablecalculation, though half what the 12V equivalent would draw.

Two record entries worth knowing

• The 5-year replacement warranty is in the datasheet prose and in no field. The longest term in this catalogue, on the component that fails first.
• application: Indoor on an IP67 garden driver a field that holdsIndoor on 340 of 342 Domus records. Read the IP67.

Where it works

• Long garden runs, where 24V halves the volt drop.
• 24V strip, inground uplighters and spike lighting.
• Buried or ground-level enclosures, at IP67.
• Not with 12V fittings they will fail immediately.
• Not where dimming is needed.

Specifying it

Outdoor non-dimmable 24V DC constant-voltage LED driver. IP67. 20 / 60 / 100 / 150 / 200 /300 / 400 / 500W. Efficiency up to 89%, PF >0.95. 150 44 32mm, 240g. Working range40C to +60C, 2090% RH non-condensing. Secondary-side short circuit, thermal overload,over-temperature and over-voltage protection. 1m flex and plug. Parallel wiring. Its datasheet lists 30W and 240W sizes that this listing does not sell ask us ifyou need either. Our record lists 20W, the smallest, and calls this an indoor product. Its5-year warranty is in the datasheet prose and in no field.

Supplied and supported by Lights For You.

Questions

Should I use 24V or 12V?

For a long run, 24V and no listing explains why. At the same power, 24V draws half the current of 12V, which means half the volt drop over the same cable. Volt drop is the usual reason a long low-voltage garden run disappoints: the fittings at the far end are visibly dimmer, and once the cable is buried there is nothing to do about it. But the fittings must be 24V a 12V fitting on a 24V supply fails immediately. Check every fitting on the run before choosing; this is a system decision, not a driver one.

Why does the datasheet list wattages I cannot buy?

It lists ten sizes 20, 30, 60, 100, 150, 200, 240, 300, 400 and 500W and this listing sells eight, missing the 30W and the 240W. That is a stocking gap rather than a data error: the sizes exist, but a specifier reading the datasheet will design around one and then find it unavailable. Ask us if you need either and we will find out whether Domus can supply it. Otherwise round up the 60W where the sheet suggests 30W, the 300W where it suggests 240W. Headroom is never wasted on a driver.

Which wattage do I need?

Add up the load and allow about 20% headroom, because running a driver at its rated maximum shortens its life. And note the current: at 500W and 24V you are drawing over 20 amps, which is still a real cable calculation even though it is half what a 12V equivalent would pull. Above about 150W, several smaller drivers near their loads usually beats one large one at the origin.

Can I bury it in a garden bed?

IP67 is dust-tight and rated for temporary immersion, so yes a genuine garden-bed rating rather than just a rain rating. But temporary immersion is not permanent: a driver sitting where water stands after every storm will fail eventually, so mount it above the water line or in a drained enclosure even at IP67.

How hot can it get?

Its working range is 40C to +60C at 2090% RH non-condensing, and the +60C ceiling is the figure that matters in Australia a driver in an enclosure in full summer sun runs far hotter than the air around it. Worth knowing that the dimmable 12V IP67 driver in this range only goes to +45C, so where heat is a concern and dimming is not needed, a non-dimmable driver like this one is the more robust choice.

What protection does it have?

Secondary-side short-circuit protection, thermal overload, over-temperature and over-voltage protection all stated in the datasheet prose and none of it in a product field. The short-circuit protection is the one that earns its keep in a garden: a low-voltage cable cut by a spade shuts the driver down instead of damaging it, and that happens more often than people expect.

What is the warranty?

Five years, stated in the datasheet prose as a replacement warranty, and in no product field. It is the longest term in this Domus catalogue and it matters most on a driver the driver is what fails first in a garden installation and the fittings outlive it. On a buried run the labour to reach it dwarfs the part. Ask us to confirm it in writing with your order.