Extreme 400W LED Grow Light by Digi-Lumen — Compact 6-Bar Full Spectrum for 1m x 1m Tents
DL-LED-EXTREME-400W
Pairs well with
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.
Specifications
- 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
Pairs Well With
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 LightSame 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 RangeBigger 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*.