Flame Defender 2kg automatic fire extinguisher, red cylinder with sprinkler valve
Flame Defender 6kg automatic fire extinguisher, ceiling-mount dome with sprinkler head
Flame Defender 12kg automatic fire extinguisher, ceiling-mount dome for larger grow rooms
Flame Defender 2kg automatic fire extinguisher, red cylinder with sprinkler valve
Flame Defender 6kg automatic fire extinguisher, ceiling-mount dome with sprinkler head
Flame Defender 12kg automatic fire extinguisher, ceiling-mount dome for larger grow rooms

Automatic Fire Extinguisher by Flame Defender — Self-Activating ABC Dry Powder for Grow Tents & Rooms

FD-SAFE-AUTOEXT-2KG

$84.95
/
Shipping calculated at checkout.

Mounts above your gear and fires automatically at 68°C, smothering an electrical fire with ABC dry powder while you're asleep or away. Dangerous goods: ships by road freight at its own rate and is not included in free shipping.

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Pairs well with

Every grow tent is a box of heat and electricity running unattended for twelve hours or more a day: drivers, ballasts, heaters, pumps and a powerboard feeding the lot. The Flame Defender is an automatic, self-contained fire extinguisher that hangs above that gear and discharges ABC dry chemical powder the moment its sprinkler head reaches 68°C (155°F), whether you are in the room or asleep two streets away. No wiring, no plumbing, no app. It comes in 2kg, 6kg and 12kg, and the manufacturer rates the 2kg at a 1.24m (4 ft) spray circle. Be clear on what it is: a backup, not a fire system. It does not replace a smoke alarm, it leaves a sticky yellow residue on everything it hits, and as a pressurised extinguisher it travels by dangerous goods road freight, never Australia Post.

Dangerous goods: not included in free shipping. Fire extinguishers are pressurised dangerous goods and are banned from the Australia Post network, so the Flame Defender ships by road courier only, at its own dangerous goods freight rate shown at checkout. It is excluded from Free shipping over $499*, including when it sits in a cart that otherwise qualifies. Free pickup from our Invermay store is available at checkout.
Works when nobody is homeMost grow-room fires start in the hours nobody is watching. The Flame Defender needs no power and no person: heat at the head sets it off, full stop.
Built for electrical firesABC dry chemical is non-conductive, so it is safe on live drivers, ballasts and powerboards. It is rated A, B and C under the US system, where C means electrical.
Sits directly over the riskHang it above the gear most likely to fail. The sprinkler head throws a hemispherical spray straight down, so the powder lands where the fire starts.
No wiring, no plumbingFix it to a ceiling, wall or rated frame bar and you are done. Nothing to wire into the controller, nothing to plumb, nothing to set up.
The 6kg is the value pickThree times the powder of the 2kg for a small step up in price. If your tent runs more than one light or a heater, the extra powder is cheap cover.
Helps stop the re-flareThe powder leaves a non-flammable layer on whatever it hits, which reduces the chance of re-ignition. The trade-off is the clean-up, covered below.
Read before you buy This is a backup layer, not a replacement for a working smoke alarm, safety switches or a handheld extinguisher by the door. The monoammonium phosphate powder leaves a sticky yellow residue that can damage electronics and will coat any plants under the spray, so plan on a full clean-up and a write-off of affected crop if it ever fires. No Australian Standard certification is published for this unit, so it does not count toward any extinguisher your building, landlord, insurer or local fire authority requires. Once it discharges it is spent and must be replaced.

Specifications
Brand: Flame Defender (Sunlight Supply)
Type: Automatic, self-contained dry chemical fire extinguisher
Extinguishing agent: ABC multi-purpose dry chemical (monoammonium phosphate)
Fire ratings: A, B and C under the US system; C covers electrical fires (Class E in Australia)
Activation: Automatic at 68°C (155°F) at the sprinkler head
Discharge pattern: Hemispherical spray below the sprinkler head
Coverage, 2kg: 1.24m (4 ft) diameter, manufacturer figure
Coverage, 6kg and 12kg: Not published by the manufacturer
Mounting: Vertical, to a wall or ceiling
Power and plumbing: None required
Body: 2kg: cylinder. 6kg and 12kg: ceiling-mount dome
Sizes: 2kg, 6kg, 12kg of extinguishing agent
After discharge: Single use; replace the unit
Shipping: Dangerous goods, road freight only. Not included in free shipping

Grower's Tip
  • Mount it over the gear most likely to fail, not automatically in the middle of the tent. Drivers, ballasts, heaters and the powerboard are where grow-room fires start.
  • Heat rises, so higher is better: ceiling or top of the tent, sprinkler head pointing down at the risk.
  • Keep the head clear of anything that runs hot in normal operation, such as an HID reflector or a heater outlet. It reacts to temperature, not smoke, so a hot surface can set it off with no fire at all.
  • The 6kg and 12kg are heavy. Fix them to a ceiling joist or a frame bar rated for the load, never to a tent corner pole or a light hanger.
  • Look it over between grows: knocks to the sprinkler head, dents, corrosion or anything resting on it. Replace a damaged unit rather than hoping.
  • Treat it as one layer. A smoke alarm outside the tent, safety switches on the circuit and a handheld extinguisher by the door cover the gaps it does not.

How To Install It
1Pick the spot directly above your highest-risk gear. In a bigger room with gear spread out, plan one unit per risk point rather than one in the middle.
2Fix the unit vertically to the ceiling, a wall or a rated frame bar with fixings suited to its weight, sprinkler head pointing down at the gear.
3Check nothing sits between the head and the gear it protects, and that the head is not touching or right next to a surface that runs hot.
4Run the room as normal. The Flame Defender sits idle until the head reaches 68°C (155°F), then discharges on its own.
5If it ever fires: kill the power at the wall, ventilate the space, find and fix the cause, clean the residue off every surface and replace the unit before you power back up.

Pairs Well With

Frequently Asked Questions
Does the Flame Defender need power, wiring or plumbing?

No. It is fully self-contained. Fix it in place and it is working, with nothing to connect.

What temperature does it go off at?

It discharges automatically when its sprinkler head reaches 68°C (155°F). It reacts to heat at the head, not to smoke.

Is it safe to use on electrical fires?

Yes. ABC dry chemical is non-conductive and the unit is rated for Class C fires under the US system, which covers electrical equipment. In Australian terms that is a Class E fire.

Which size do I need?

Flame Defender only publishes coverage for the 2kg: a 1.24m (4 ft) circle under the head, which suits a small tent or a single equipment shelf. The 6kg carries three times the powder and the 12kg six times, so step up for larger tents and rooms, and use more than one unit when the risk points are spread out.

Will it damage my plants and equipment if it goes off?

Yes, it can. The powder leaves a sticky yellow residue that can damage electronics and coats plants under the spray. It is designed to stop a fire, and the clean-up is the price of that.

Can it go off without a fire?

Yes, if the head itself gets to 68°C. That is why it should never sit against a reflector, heater outlet or any surface that runs hot in normal use.

Does it replace a smoke alarm or a normal fire extinguisher?

No. It is an automatic backup for the hours nobody is watching. Keep a working smoke alarm and a handheld extinguisher as well, and it does not count toward any extinguisher your building or insurer requires.

Why is it not included in free shipping?

Fire extinguishers are pressurised dangerous goods that Australia Post will not carry, so the Flame Defender travels by road courier at its own freight rate, shown at checkout. Free pickup from our Invermay store is the cheapest way to get one.

Is it reusable after it discharges?

No. It is a single-use unit. Once it has fired, replace it before you run the room again.

Select Size

Fit it once. Hope it never fires.

Heat-activated, ABC rated, no wiring. Ships by dangerous goods road freight at its own rate, not included in free shipping. Free pickup in Invermay.

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Order by 2pm and it ships the same business day from Invermay, Tasmania.

Calculated at checkout by weight and destination. Free shipping over $499*.

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30-day change-of-mind returns on unopened, unused products. A 10% restocking fee applies and return shipping is at your cost.

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Unit 10/110 Gleadow Street, Invermay 7248. Mon–Fri 8:30am–5:30pm, Sat 9am–3pm.

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