- (1) Ionboard S44 400W LED Grow Light
- (1) Hanging Kit with Ratchet Hangers
- (1) US Power Cord (NEMA 1-15 Type-A)
- (1) User Manual
AC Infinity Ionboard S44 400W Full Spectrum LED Grow Light
- Covers a 4x4 ft canopy area with 400 watts of full-spectrum light
- Uses 1,024 Samsung LM301B diodes for an efficient 2.75 umol/J output
- IP65-rated aluminum unibody protects electronics from dust and moisture
- 2-year warranty covering manufacturing defects and component failures under normal use
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Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are seeking more uniform canopy coverage because your current board leaves the corners of your tent in the dark.
- You are automating your light cycles because manual dimming is inconsistent and easy to forget during busy weeks.
What We Found
- The aluminum unibody keeps the board surprisingly cool to the touch even after running at full power for twelve hours.
- We noticed the wider diode spacing prevents the typical middle heat spikes that stress sensitive plants.
- Pairing this with a UIS controller is the only way to go if you want to dial in sunrise and sunset ramping effects.
What Users Say
- Growers who switched to these Samsung diodes say they stopped seeing the light-bleaching common with cheaper LEDs.
- Users who linked this to a smart controller say they finally stopped worrying about light leaks during dark cycles.
- People in high-humidity rooms report the sealed build prevents the diode flickering they saw in older models.
AC Infinity Ionboard S44 400W Full Spectrum LED Grow Light
Struggling to achieve consistent, powerful lighting across your entire grow area? The AC Infinity Ionboard S44 is engineered to solve that problem, delivering professional-grade, full-spectrum light tailored for a 4x4 grow tent. Its sleek yet durable aluminum unibody design not only looks great but also provides robust IP65-rated protection against moisture and dust.
At the heart of the Ionboard S44 are 1,024 genuine Samsung LM301B diodes, meticulously arranged to eliminate hotspots and ensure deep, even canopy penetration. This high-efficiency setup achieves an impressive 2.75 µmol/J, promoting vigorous growth from seed to harvest. The onboard dimmer allows for precise control in 20% increments, but the light's true potential is unlocked when paired with an advanced AC Infinity smart controller, enabling fully automated schedules and custom light cycles.
What's Included
Features



Full-Spectrum Coverage
Provides a complete spectrum for all growth stages, from seedling to harvest, for healthier plants and higher yields.
Aluminum Unibody Design
IP65-rated construction prevents dust and moisture penetration, ensuring long-term reliability in humid environments.
Premium Samsung Diodes
Features 1024 Samsung LM301B diodes strategically spaced for maximum canopy penetration and even coverage.
Smart Controls
Integrates with AC Infinity controllers for automated schedules, dimming, and custom lighting recipes via the app.
AC Infinity Ionboard S44 Specifications
| Specification | Value |
|---|---|
| Light Dimensions | 23.62 x 23.62 in. (60.0 x 60.0 cm) |
| LED Board Thickness | 0.43 in. (1.1 cm) |
| Driver Dimensions | 10.74 x 1.75 in. (22.5 x 4.5 cm) |
| Coverage | 4 x 4 ft. |
| Diodes | Samsung LM301B |
| LED Chip Count | 1024 |
| LED Driver | AC Infinity Proprietary Driver, Model GTS-100 |
| Efficiency | 2.75 µmol/j |
| PPFD | 1937 µmol/s |
| Spectrum | 660nm, 730nm, 3000K, 5000K |
| Wattage | 400 W |
| Voltage | 100-277V AC |
| Frequency | 50/60 Hz |
| Amps | 3.60 A @ 120V | 1.80 A @ 240V | 1.56 A @ 277V |
| Controller | Digital Dimming Timer |
| Power Connector Type | US Plug (NEMA 1-15 Type-A) |
| Operating Humidity | 35 to 85% RH |
| Operating Temperature | 32 to 140°F |
| Life Expectancy | 50,000 Hours |
Support & Manuals
Warranty
This product is backed by a two-year warranty from AC Infinity, covering manufacturing defects and component failures under normal use. All sales are final.
FAQs
The Ionboard S44 stands out with its genuine Samsung LM301B diodes, high efficiency of 2.75 µmol/J, and a durable unibody build. Its seamless integration into the greater AC Infinity ecosystem provides a level of automation and control that many competitors lack.
Yes. It provides a scientifically engineered full spectrum (660nm, 730nm, 3000K, 5000K) that supports plants through their entire life cycle. The built-in dimmer and smart controller compatibility allow you to tailor the light intensity for seedlings, vegetative growth, and flowering.
The IP65 rating signifies that the light is completely dust-tight and protected against low-pressure water jets. This makes it exceptionally safe and reliable for use in the high-humidity environments typical of grow tents and rooms, protecting the internal components from moisture damage.
The package includes the Ionboard S44 LED light, a complete hanging kit with adjustable ratchet hangers, a power cord, and the user manual. Smart controllers like the AC Infinity Controller AI+ that unlock advanced features are sold separately.
AC Infinity's two-year warranty covers manufacturing defects and component failures that occur under normal operating conditions. It ensures your investment is protected against unforeseen issues with the fixture.
To maximize your results, consider pairing the Ionboard S44 with other AC Infinity equipment like inline fans and controllers. This creates a fully automated environment where temperature and humidity trigger responses from your devices. For a deeper dive, check out our in-depth guide to AC Infinity systems.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.