Extreme 400W LED Grow Light by Digi-Lumen — Compact 6-Bar Full Spectrum for 1m x 1m Tents

The Digi-Lumen Extreme 400W is the new generation of Digi-Lumen's compact 6-bar LED, replacing the Halo 400W with more output from the same footprint — 1200 µmol/s at 3.0 µmol/J across a full 1m x 1m canopy. The high-frequency driver is built into the fixture, dimming runs from the manual dial or the 0–10V control ports, and the IP45-rated body is made for the humidity of a working grow space. Light distribution is engineered edge to edge, so PPFD stays consistent from corner to corner instead of spiking in the middle. 1200 µmol/s Output 11% more photon output than the Halo 400W it replaces — enough intensity to drive high-light crops from veg through heavy flower. 3.0 µmol/J Efficacy PAR-optimised diodes turn more of every watt into usable light — lower power bills and less heat at the canopy for the same output. Even Corner-to-Corner Coverage Engineered for uniform PPFD across the full 1m x 1m area — no hot centre, no dim corners, measured on a 5 x 5 grid at 30cm. Dimming + 0–10V Control Adjust intensity on the manual dial for each growth stage, or wire the 0–10V ports to a controller for automated dimming and schedules. Specifications Input Power 400W PPF Output 1200 µmol/s Efficacy 3.0 µmol/J Spectrum Full spectrum, PAR-optimised Design Compact 6-bar, integrated driver Dimming Manual dial + 0–10V control ports Coverage 1.0m x 1.0m (optimal at ~30cm hang height) Protection Rating IP45 Warranty 2 years Getting the most from your Extreme 400W Dim right down for seedlings and clones, then step up as plants establish — full power too early stresses young plants. Coverage is optimised at around 30cm hang height — that is where the corner-to-corner uniformity was measured, so use it as your flower baseline and watch leaf tips before going lower. The 0–10V ports pair with a controller like the Digi-Lumen Enviro-Pro for automated dimming, sunrise/sunset ramps and temperature protection. At 3.0 µmol/J it runs cooler than older 400W fixtures, but a 1m tent at full power still needs proper exhaust — size your fan to the space. Setting Up 1 Hang the fixture from your tent's top bars, centred over the canopy. 2 Set the height — higher for young plants, working toward roughly 30cm above the canopy at full power in flower. 3 Plug in — the driver is built in, so there is no external ballast or hub to mount. 4 Dial the dimmer to suit the growth stage, or wire the 0–10V ports to a lighting controller for automated control. 5 Ramp to full 400W through flower, checking canopy temperature and leaf response as you go. Pairs Well With Enviro-Pro Environmental Controller The Extreme's 0–10V ports plug straight into the Enviro-Pro's dimming channels — automated dimming, sunrise/sunset ramps and temperature protection from one touchscreen. Extreme 200W Under Canopy Light Same Extreme family, aimed at the lower canopy — fills in the light your overhead fixture can't reach for denser development top to bottom. The Digi-Lumen Range Bigger space? The Extreme series scales from 60W bars to the 1000W XL — browse the full range of fixtures and controllers. FAQ What tent size suits the Extreme 400W? A 1m x 1m tent is the target — the fixture is engineered for even coverage across a 1.0m x 1.0m canopy. For 1.2m and 1.5m spaces, step up to the Extreme 720W. How is it different from the Halo 400W? The Extreme 400W is the Halo's successor — 1200 µmol/s versus 1080, and 3.0 µmol/J versus 2.7, so more light and better efficiency from the same 400W draw and 1m x 1m footprint. Is it dimmable? Yes. It has a manual dimming control on the fixture, plus 0–10V control ports for automated dimming from a compatible controller. Does it need an external driver or ballast? No. The high-frequency driver is integrated into the fixture — one plug, no external ballast, no signal hub. What warranty does it carry? A 2-year Digi-Lumen manufacturer warranty, backed locally — if anything goes wrong, get in touch and we will sort it out. More Light, Less Power, Same Footprint 1200 µmol/s at 3.0 µmol/J for 1m x 1m spaces. Free shipping over $499*. Add to Cart View the Digi-Lumen Range