Grow Tent Kit 100x100 (Dark Box)

Grow Tent Kit 100x100 from Dark Box — Everything You Need in One Box

The Grow Tent Kit 100x100 from Dark Box is a complete indoor growing package that fits up to 3 plants in a 100x100x220 cm tent with LED lighting, extraction, and climate monitoring included. Instead of piecing together a setup from five different shops and hoping it all works together, you open one box and you're growing within the hour. We've sold standalone tents and separate components for years — kits like this one save you the headache of matching fan diameters to duct sizes and wondering if your light covers enough canopy.

What's Included in the Dark Box Grow Tent Kit

Every component in this grow tent kit is matched to work together — no guessing whether your fan fits your filter or your ducting matches your ports. Here's the full breakdown of what arrives at your door:

That's seven components out of one box. The carbon filter alone — loaded with Australian Rc-4/8 activated carbon — would run you a decent chunk of change separately. The 5-metre ducting gives you enough length to route air out of almost any room configuration without needing to buy extra.

Why a Complete Grow Tent Kit Beats Buying Separately

A complete grow tent kit removes the single biggest frustration we see with indoor growers: mismatched components. Someone buys a 100 mm fan, then orders a 125 mm carbon filter, then spends a week trying to find a reducer that doesn't leak. Or they grab a cheap LED that covers 60x60 cm and wonder why the corners of their 100x100 tent produce wispy, stretched plants.

With the Dark Box kit, the 300W Cosmos LED actually covers the full square metre of canopy. The 125 mm TT extractor matches the 125/300 mm carbon filter. The 127 mm ducting fits the extraction setup. It all lines up because it was designed as a system, not cobbled together from a parts bin.

The other thing worth mentioning: the tent itself goes up without tools. Steel frame, slot-together poles, 15 minutes from flat-pack to standing. We've timed it. The light-sealing on the Dark Box is solid — run a torch around the zips in a dark room and you shouldn't see bleed. That matters if you're running photoperiod strains that need uninterrupted dark cycles.

The 300W Cosmos LED — Full Spectrum for Every Growth Stage

The Cosmos LED board included in this grow tent kit puts out 300W of full-spectrum light with separate settings for vegetative and flowering phases. During veg, you dial it to the bluer spectrum to keep internodal spacing tight and leaves broad. Flip to flower mode and the red wavelengths ramp up, pushing bud development and resin production.

300W across a 100x100 cm footprint gives you roughly 300 watts per square metre — that's in the sweet spot for LED growing. Compared to a 600W HPS setup that would cook a tent this size and spike your electricity bill, the LED runs cooler and draws less power. You'll feel the difference when you put your hand under it: warm, not scorching. That lower heat output also means your extraction system doesn't have to work overtime just to keep temperatures below 30 degrees.

One honest note: 300W is good for 3 plants in a 100x100 space, but if you're packing in 4 large plants or running a SCROG net wall-to-wall, you might find the edges slightly underpowered. For most growers running 2 to 3 plants, it's more than enough.

Ventilation and Odour Control in the Dark Box Kit

Air management is where a lot of first-time indoor growers come unstuck. Stale, humid air sitting around your canopy is an open invitation for mould and mildew. This grow tent kit includes two fans and a carbon filter — the quiet 100 mm in-line fan handles intake, while the 125 mm TT extractor pulls air through the activated carbon filter and out through the 5-metre ducting.

The TT extractor comes with adjustable speeds and a wall-mount bracket, so you can dial airflow to match your tent's needs rather than running it flat-out. During early veg when plants are small and transpiration is low, keep it on a lower setting. Once you're deep into flower and humidity climbs, crank it up.

The carbon filter uses Australian Rc-4/8 activated carbon — denser and more porous than the cheaper Chinese carbon you find in budget filters. In practical terms, that means it actually scrubs odour instead of just muffling it slightly. We've seen growers cheap out on carbon filters and regret it within weeks. This one holds up.

Grow Tent Kit 100x100 Specifications

Why You Actually Need a Kit This Size

The 60x60 cm tents we carry are fine for a single plant or a micro-grow experiment. But the moment you want to run 2 or 3 plants — or give one plant enough room to actually bush out — you hit the walls. Literally. Branches press against the tent fabric, light can't reach the lower canopy, and airflow gets choked. We'd pick the 100x100 over the smaller sizes every time if you have the floor space for it.

A square metre of growing area also means you can actually walk your hands around the plants for training, defoliation, and inspection without performing contortionist moves. The 220 cm height gives you room for the LED, hanging hardware, and still leaves 150+ cm of usable growing height below the light. That's enough for most strains without having to supercrop aggressively.

The alternative to a kit is sourcing each component individually. We sell all of these parts separately too, and for growers who already own half the gear, that makes sense. But if you're starting from zero, buying a matched grow tent kit saves you the compatibility headaches and usually works out cheaper than the sum of the parts.

How to Set Up Your Dark Box Grow Tent Kit

1. Unpack all components and lay them out. Check the tent poles, connectors, canvas, LED, fans, filter, ducting, and hygrometer are all present.
2. Assemble the steel frame — the poles slot together without tools. Start with the base rectangle, then add the vertical corners, then the top rectangle.
3. Slide the tent canvas over the frame with the diamond mylar interior facing inward. Zip it up and check for light leaks by standing inside with a torch (or your phone light) while someone checks from outside.
4. Hang the 300W Cosmos LED from the top crossbars using the included hangers. Position it centrally. Set it to vegetative mode if you're starting with seedlings or clones.
5. Mount the TT 125 mm extractor fan using the wall-mount bracket, or suspend it inside the tent near the top. Connect the 125/300 mm carbon filter to the intake side of the fan.
6. Attach the 127 mm ducting to the fan's output and route it through a tent port to your exhaust point — a window, ceiling vent, or into another room.
7. Position the 100 mm in-line fan at a lower port for fresh air intake.
8. Place the digital thermo hygrometer at canopy height. Aim for 22-28 degrees Celsius and 40-60% relative humidity during the growing cycle.
9. Add your pots, growing medium, and plants. Turn everything on and check airflow — the tent walls should pull slightly inward, showing negative pressure. That means air is being pulled through the carbon filter before exiting, which is exactly what you want for odour control.

Frequently Asked Questions

Last updated: April 2026