Grow Tent Kit 80x80 (Dark Box)

Grow Tent Kit 80x80 Dark Box — Your Complete Indoor Grow Room in a Box

The Grow Tent Kit 80x80 from Dark Box is a complete indoor growing setup that gives you everything you need — tent, LED light, ventilation, carbon filter, and climate monitoring — in one purchase. Sized at 80 x 80 x 200 cm, it comfortably fits 1-2 plants and assembles in under 20 minutes without tools. This is the kit we'd recommend to anyone setting up their first indoor grow space who doesn't want to spend weeks researching individual components.

What's Included in the Dark Box 80x80 Grow Tent Kit

Every component in this kit has been matched to the tent's footprint — no guessing whether your fan fits the ducting or your light covers the canopy. Here's the full breakdown of what arrives in the box.

Why the 80x80 Is the Best Grow Tent Kit Size for Your First Indoor Grow

The 80 x 80 cm footprint is the sweet spot for home growers — and we'd pick it over the smaller 60x60 every single time. Here's why: a 60x60 tent gives you 0.36 m² of canopy. Sounds fine on paper, but once you hang a light and install ducting, your actual usable space shrinks fast. The 80x80 gives you 0.64 m² — nearly double — and that extra breathing room makes a real difference when your plants start stretching in flower.

We've seen growers buy the smaller tent, harvest once, and immediately upgrade. Save yourself the hassle and the second purchase. The 80x80 fits in a corner of most rooms, inside a wardrobe, or in a spare cupboard without dominating the space. At 200 cm tall, you've got enough vertical clearance to let your plants develop properly without light burn from the LED sitting too close to the canopy.

The one honest limitation: if you're planning to grow more than 2 plants, or if you're running tall sativa-dominant genetics, you'll want to look at the 100x100 or 120x120 kits instead. For 1-2 plants of average height, though, this is the size that makes the most sense.

Specifications — Dark Box Grow Tent Kit 80x80

These are the numbers that matter when you're comparing kits or checking whether this fits your space.

The 150W Cosmos LED — Full Spectrum Light That Actually Covers the Canopy

The included Cosmos LED board pulls 150W and delivers full-spectrum light tuned for both vegetative growth and flowering. You can switch between veg and bloom modes depending on your plant's stage, which means you're not running unnecessary wavelengths and wasting energy during early growth.

At 150W, you're getting roughly 234W per square metre of canopy in this 0.64 m² tent — well within the 200-400W/m² range where most indoor plants thrive. The board-style design spreads light more evenly than old-school blurple panels, and the heat dissipation is noticeably better. We've held our hand under this light after 8 hours of operation — warm, not hot. That matters because in an 80x80 tent, there's not much room between the light and your canopy. Poor heat management means crispy leaf tips. This one keeps things under control.

Compared to running a separate HPS or MH setup, you skip the ballast, the reflector, and the massive electricity bill. A 150W LED running 18 hours a day in veg costs roughly a third of what a 400W HPS would.

Ventilation and Odour Control — Carbon Filter, Fans, and 5 Metres of Ducting

This kit includes both an in-line extractor fan and a TT extractor fan at 100 mm, plus a carbon air filter rated at 100/200 mm and 5 metres of flexible aluminium-polyester ducting at 102 mm diameter. That's a complete air management system — intake, extraction, and odour scrubbing.

The carbon filter is the component most beginners underestimate. Without it, your neighbours will know exactly what's growing in your spare room. The 100/200 mm filter in this kit neutralises odour before air leaves the tent through the ducting. The TT extractor fan features adjustable speed control and comes pre-wired, so you can dial airflow up during flowering when humidity and smell both spike, and bring it down during early veg when things are calmer.

The in-line fan runs quietly — noticeably quieter than the cheap clip-on fans some growers try to get away with. It maintains negative pressure inside the tent, which means air only exits through the carbon filter, not through zip seams or cable ports. That's how you keep a grow truly odour-free.

One thing to watch: the 5-metre duct gives you plenty of length to route air wherever you need it, but every bend reduces airflow efficiency. Keep your ducting as straight and short as practically possible. Excess length? Trim it. Don't coil it up inside the tent.

Climate Monitoring — The Digital Thermo Hygrometer

The included digital thermo hygrometer tracks both temperature and humidity inside your tent. This is a small component that does critical work. Cannabis plants want 20-28°C and 40-60% relative humidity during flowering. Stray too far outside those ranges and you're inviting mould, nutrient lockout, or stunted growth.

The digital readout gives you instant numbers — no squinting at analogue dials. Place it at canopy level, not at the top of the tent where hot air rises and readings skew high. Check it twice a day until you understand how your tent's microclimate behaves, then adjust fan speed accordingly.

How to Set Up Your Dark Box 80x80 Grow Tent Kit

1. Unpack all components and lay out the steel frame poles. The tent assembles without tools — poles slot together at the connectors. Start with the base frame, then build upward.
2. Slide the fabric shell over the assembled frame. Start from the top and work down, making sure the diamond mylar interior faces inward. Zip all openings closed and check for light leaks in a dark room.
3. Mount the Cosmos 150W LED light inside the tent using the included hanging hardware. Position it centrally. During veg, keep it 40-50 cm above the canopy. During flower, drop it to 30-40 cm.
4. Install the carbon filter inside the tent at the top, connected to the in-line extractor fan via the 102 mm ducting. Route the duct out through one of the upper ports.
5. Set up the TT extractor fan at a lower port for fresh air intake. Start on the lowest speed setting and adjust once you see how temperature and humidity respond.
6. Place the thermo hygrometer at canopy height, away from direct light. Power everything on and let the system run for 2-3 hours before introducing plants — this lets you calibrate airflow and check that temperatures stabilise in the 22-26°C range.
7. Introduce your plants, set your light timer (18/6 for veg, 12/12 for flower), and you're growing.

From Our Counter — What We Actually Tell First-Time Growers

We've been selling grow equipment since 1999, and the number one mistake we see with tent kits isn't the equipment — it's overcomplicating things. People buy a kit like this and then spend three weeks watching YouTube videos about advanced training techniques before they've even germinated a seed. Start simple. Put a plant in soil, turn the light on, keep the fan running. You'll learn more from one actual grow cycle than from 50 hours of content.

The second most common issue: overwatering. In an 80x80 tent with proper ventilation, soil dries out slower than you'd expect because humidity stays consistent. Stick your finger 2-3 cm into the soil. If it's still damp, leave it alone. More indoor plants are killed by too much water than by too little.

The Dark Box kit handles the environment. Your job is the plant. Keep it that simple and your first harvest will surprise you.

Frequently Asked Questions

Last updated: April 2026