Help reduce negative pressure in tent while still blocking light
Good kit, has everything you need
Very happy with qbl always quick shipping and quality products. Will continue to shop through qbl
4Seasons LED Grow Lights
4Seasons builds the kind of LED grow light that serious home growers end up wanting once they have outgrown their first panel: Samsung LM301H EVO white diodes, OSRAM deep-red and far-red, oversized aluminium heatsinks, and a price that sits comfortably below the premium brands without giving up the parts that matter.
Quick Bloom Lights stocks and supports 4Seasons here in Australia. The lights ship from our Sydney warehouse, warranty is handled locally, and when you have a question you are talking to people who grow under them and know how they connect to the rest of your setup.
LM301H EVO
Samsung whites + OSRAM reds
50,000 hrs
rated lifespan
AC Infinity
controller-ready via Type-A
2-year warranty
supported from Sydney
Runs on the AC Infinity controller you already own
This is the reason we chose 4Seasons. Every light in the range connects to an AC Infinity Controller 69, 69 Pro or Controller AI+ through the UIS Lighting Adapter Type-A ($44.95, sold separately).
Once it is plugged in, the light stops being a separate appliance on a separate timer. It runs on the same controller and the same app as your inline fan, humidifier, dehumidifier and heater — one schedule, sunrise and sunset ramps, dimming from your phone, and the whole tent working to one set of targets. If you have already built an AC Infinity setup, a 4Seasons light drops straight into it.
One adapter per light. The Type-A adapter goes between the light's RJ11 dimming port and a free port on your controller. The Helios and Quantum PAR also have their own on-board dimmer, so they work perfectly well standalone — the controller connection is an upgrade, not a requirement. The 120W Under Canopy bar has no built-in dimmer and is dimmed through the controller.
The middle ground that genuinely delivers
We stock three LED ranges and they are built for three different growers. 4Seasons is the one in the middle, and for a lot of people it is the right place to be.
| Digi-Lumen Extreme | Value-first. The lowest cost per watt we sell, and a very capable light for the money. 720W from $449. |
| 4Seasons Helios | The step up in diodes, heatsinking and build, without the premium-brand price. 720W at $889. |
| AC Infinity Ionframe | The fully native AC Infinity ecosystem light, no adapter needed. 500W EVO6 at $1,099, 730W EVO8 at $1,575. |
Put side by side for a 1.2 × 1.2 m flowering tent: the Helios 720 EVO+ brings 720W of Samsung LM301H EVO and OSRAM output for $889, against $1,099 for AC Infinity's 500W EVO6 at the same footprint. You add a $44.95 adapter and you are running it from the same controller. That is the case for 4Seasons in one line.
The range
| Helios 720 EVO+ | 720W flagship bar light, 3,226 diodes, 1,162 µmol/m²/s average PPFD tested across a 1.2 × 1.2 m tent. The main light for a serious flowering space. |
| Quantum PAR 100W | Compact seed-to-harvest light for a 60 × 60 cm flowering space. 3 kg on a 30 × 25 cm board — ideal for a small tent, a cupboard grow or a dedicated mother or clone space. |
| 120W Under Canopy | IP66 supplemental bar, 360 µmol/s at 3.0 µmol/J, adjustable stand included. Lights the lower canopy that top lighting cannot reach. |
Built to run cool and last
What separates a light that holds its output for years from one that fades is how hard the diodes are pushed and how well heat is carried away from them. 4Seasons spreads the load across a high diode count so each one runs well below its limit, and backs it with oversized aluminium heatsinks that keep the diodes cool at full power. Cooler diodes convert more of the power they draw into usable light and hold their output for longer — which is what the 50,000-hour rated lifespan depends on.
FAQ
Do 4Seasons lights work with AC Infinity controllers?
Yes. Every light in the range connects to the Controller 69, 69 Pro and Controller AI+ through the UIS Lighting Adapter Type-A, sold separately. You get dimming, scheduling and sunrise/sunset control from the AC Infinity app alongside the rest of your climate equipment.
How does 4Seasons compare with AC Infinity lights?
AC Infinity's Ionframe range is the native choice — it plugs into the controller with no adapter and it is a superb light. 4Seasons gives you the same class of Samsung LM301H EVO diodes for considerably less, with a $44.95 adapter to join the same ecosystem. If budget matters and you still want a quality fixture on your AC Infinity controller, 4Seasons is the natural fit.
Which size do I need?
For a 1.2 × 1.2 m flowering tent, the Helios 720 EVO+. For a 60 × 60 cm space, the Quantum PAR 100W. Add the 120W Under Canopy to either to bring up the lower canopy once plants fill out. If you are between sizes or lighting something unusual, send us the dimensions and we will tell you what fits.
Who handles the warranty?
We do. Every 4Seasons light we sell carries a 2-year warranty handled from our Sydney warehouse, so there is no overseas seller to chase and no shipping units offshore.