Updated: Nov 1, 2025
With so many LED grow lights on the market today, it can be difficult to separate quality fixtures from cheap, underperforming ones. LED grow light technology is evolving quickly—models that were considered top-tier just a year ago may already be outdated. I’ve been growing with LEDs and studying horticultural lighting for over ten years, and as a result, I’m often asked: What are the best LED grow lights available right now?
In this article, I’ve rounded up my top picks for the Best LED Grow Lights in 2025 that are designed for a 2′×4′ flowering footprint. Every fixture on this list supports full-cycle growing—from seedling through flower—and comes ready to use out of the box. I’ve excluded DIY builds or lights that require major assembly.
These grow lights are listed in no particular order, but each one has been selected based on several key factors: PAR output, efficiency, light spectrum, uniformity, diode quality, driver reliability, and warranty.
Importantly, I’ve limited this list to lights priced under $400, because in my experience, you don’t need to spend more than that to properly light a 2′×4′ space.
Since grow light prices can change frequently, I recommend checking the links listed under each model for the most current pricing.
If you need a better understanding of key lighting concepts like PAR output, spectrum, efficacy, energy use, or light distribution, check out my full LED Grow Light Buyer’s Guide.
Mars Hydro TSL 2000 LED Grow Light
The Mars Hydro TSL2000 is a high-efficiency LED grow light designed for indoor growers looking to maximize output in a 2′×4′ grow space. Drawing approximately 300 watts at full power, it delivers up to 717 µmol/s of PPF with a reported efficacy of 2.6 µmol/J—making it a solid contender among mid-range LED fixtures.
This light features a slim, bar-style quantum board layout paired with a reflective aluminum hood that improves light distribution and canopy penetration. The result is more even coverage with fewer hotspots, which is especially important in rectangular tents. The onboard dimmer (0–100%) and daisy-chain capability allow for flexible intensity control and easy scaling in multi-light setups.
For growers working in a 2′×4′ tent, the TSL2000 performs well, especially when hung lower and dimmed to suit your plant stage and environment. The fixture supports full-cycle growing—from veg to flower—and its passive cooling system means zero fan noise and fewer mechanical parts that could fail.
Growers report average PPFD readings above 700 µmol/m²/s at ~14–18″ in the core footprint, which is ideal for flowering small to medium plants. If you’re after an efficient, quiet, and adaptable LED grow light for a 2×4 area, the TSL2000 offers strong value and reliable performance without going over budget.
Amazon link
Mars Hydro website link (Discount code: MRGROWIT)
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LEDs: ~704 SMD chips
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PPFD: ~727 µmol/m²/s
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PPF: ~717 µmol/s
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PAR efficacy: ~2.6 µmol/j
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Wattage draw: ~300 W at full power ±5%
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Coverage area: Veg ≈ 3′×5′ ; Flower ≈ 2′×4′
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Light distance: ~14–18″
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Dimensions: ~40″ × 10″ × 2.5″
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Weight: ~7.8 lbs
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Warranty: 5-year warranty in many regions
Vivosun AeroLight Wing AW200SE LED Grow Light
The VIVOSUN AeroLight A200SE is a compact, full-spectrum LED grow light designed for growers seeking smart features in a 2′×4′ grow space. Rated at 200 watts, it delivers sun-like light across the 380–780 nm spectrum, including deep red (660 nm) and far-red (730 nm), with a reported efficacy of 2.75 µmol/J—putting it on par with other efficient mid-range fixtures.
What sets the A200SE apart is its integrated circulation fan, built directly into the center of the light. This design pushes airflow down into the canopy, helping regulate humidity and temperature while reducing the need for separate oscillating fans—especially useful in smaller tents where space is limited.
The fixture is compatible with VIVOSUN’s GrowHub E25 or E42A+ controllers and the company’s app. This enables remote scheduling, 25–100% dimming, and environmental automation across both the light and its integrated fan. For growers looking to automate their setup or fine-tune light output across different growth stages, this is a major advantage.
While the A200SE’s coverage is optimized for 2′×4′ flowering spaces, it’s flexible enough for veg and bloom with proper height and intensity adjustments. Its passively cooled design helps keep it quiet, and the smart controls make it a great fit for anyone seeking to reduce labor and streamline their grow environment.
With a balanced spectrum, integrated fan, and smart automation, the A200SE delivers a lot of functionality in a compact, efficient package—ideal for modern tent growers.
Amazon link (Discount code: MRGROW15)
Vivosun website link (Discount code: MRGROW15)
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LEDs: White (2835 SMD) plus 660 nm & 730 nm deep red/far red components
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PPFD: N/A
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PPF: N/A
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PAR efficacy: ~2.75 µmol/j
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Wattage draw: ~200 W
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Coverage area: ~2′×4′, with veg coverage up to ~3′×3′
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Light distance: ~12″-24″
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Dimensions: ~26″ × 13″ × 2.3″
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Weight: ~6.9 lbs
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Warranty: 3-year standard warranty
Vivosun VS2000 LED Grow Light
The VIVOSUN VS2000 is a full-spectrum LED grow light designed for efficient output in small indoor grow spaces. Drawing around 200 watts, it uses Samsung LM301 diodes and delivers a claimed PPE of 2.9 µmol/J—strong performance for its class.
Its broad-spectrum output (380–780 nm, including 660 nm deep red) supports full-cycle plant growth from seedling to harvest. A built-in dimmer allows you to adjust intensity from 25% to 100%, making it easy to fine-tune lighting for each growth stage without swapping fixtures.
The VS2000 runs fanless, relying on passive cooling, which keeps noise low and maintenance minimal. Its IP65 rating offers moisture resistance, making it a reliable option for tents or confined indoor setups.
VIVOSUN lists flowering coverage at 2′×4′ and vegetative coverage up to 4′×4′. For 2′×4′ growers, this light offers a good balance of output and coverage, though hanging height or dimming should be adjusted to prevent light burn in sensitive stages.
With efficient performance, solid spectrum, and smart power use, the VS2000 is a capable, user-friendly option for those wanting solid yields without overspending.
Amazon link (Discount code: MRGROW15)
Vivosun website link (Discount code: MRGROW15)
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LEDs: Samsung LM301 diodes
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PPFD: N/A
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PPF: N/A
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PAR efficacy: ~2.9 µmol/j
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Wattage draw: ~200 W
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Coverage area: ~2′×4′ ; maximum 4′×4′
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Light distance: ~12″-18″
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Dimensions: 23.5″ × 11.8″ × 2.9″
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Weight: ~9.03 lbs
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Warranty: 5-year after-sales service in many markets
Spider Farmer SF2000 LED Grow Light
The Spider Farmer SF2000 is a full-spectrum LED grow light built for indoor growers who want reliable performance and flexibility. It draws about 200 watts and delivers a PAR efficacy of approximately 2.7 µmol/J, offering solid energy efficiency for small to mid-sized grow spaces.
The fixture uses high-quality Samsung LM301H EVO or LM301B diodes, paired with a full-spectrum output that includes 3000K and 5000K whites, 660nm deep red, and 760nm infrared. This balanced spectrum supports healthy growth across all stages—from seedling to flowering.
The SF2000 features a passive, fanless cooling system with an aluminum heatsink, keeping operation silent and helping manage heat inside a grow tent. It’s often rated for up to a 2′×4′ footprint in flower and 3′×4′ in veg.
For growers using a 2′×4′ tent, the SF2000 is well-suited—especially when dimmed slightly or hung higher above the canopy to control intensity. This allows strong light distribution without overwhelming young or light-sensitive plants.
With its efficient output, quality components, and quiet operation, the SF2000 remains a go-to choice for growers looking for dependable performance in a compact, high-output LED grow light.
Amazon link
Spider Farmer website link (Discount code: MRGROWIT5)
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LEDs: Samsung LM301H EVO diodes
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PPFD: ~572 µmol/m²/s
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PPF: ~553.9 µmol/s
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PAR efficacy: ~2.7 µmol/j
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Wattage draw: ~200 W ±5%
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Coverage area: ~2′×4′ ; Max: ~3′×4′
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Light distance: ~15.5″
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Dimensions: ~25.5″ × 10.5″ × 2.3″
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Weight: ~10.2 lbs
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Warranty: 5-year manufacturer warranty in many markets
AC Infinity IONBOARD S24 LED Grow Light
The AC Infinity IONBOARD S24 is a full-spectrum LED grow light built for indoor growers who want efficiency and smart control in a 2′×4′ space. Drawing around 200–220 watts, it’s equipped with high-output Samsung LM301H (or LM301B) diodes and delivers strong PAR performance for full-cycle growing.
One standout feature is its algorithmic diode layout, which strategically places 3000K and 6500K white, 660nm red, and 730nm far-red diodes for even light distribution and deep canopy penetration. The onboard dimmer supports 0–100% adjustment, and the fixture integrates with AC Infinity’s UIS™ smart controller ecosystem, enabling app-based control, scheduling, and automation.
The fixture’s passive cooling system uses a fanless unibody aluminum design, keeping noise low and reliability high. Its IP65-rated build makes it resistant to dust and moisture—important in high-humidity tent environments.
For growers using a 2′×4′ grow tent, the S24 delivers more than enough intensity. It can be dimmed or hung higher to fine-tune output, making it suitable for seedlings through flowering. With premium components, a clean spectrum, and full smart compatibility, the IONBOARD S24 is a top-tier choice for growers who want precision and performance in a compact footprint.
Amazon link (Discount code: MRGROWIT15)
AC Infinity website link (Discount code: MRGROWIT15)
Happy Hydro link
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LEDs: Samsung Horticulture Series LM301H/LM301B diodes
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PPFD: Up to ~1,598 µmol/m²/s
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PPF: N/A
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PAR efficacy: ~2.65 µmol/j
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Wattage draw: ~200 W
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Coverage area: ~2′×4′
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Light distance: 12-24″
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Dimensions: ~11.81″ × 23.62″
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Weight: 12.92 lbs
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Warranty: 2-year warranty
Mars Hydro FC 4000-EVO LED Grow Light
The Mars Hydro Smart FC4000 EVO is a full-spectrum LED grow light built for indoor growers seeking high output and smart features in a mid-sized footprint. Drawing around 320 watts, it uses Samsung LM301H EVO diodes to deliver a photosynthetic photon efficacy (PPE) of approximately 2.85 µmol/J—placing it among the more efficient lights in its class.
It’s officially rated for a 2′×4′ flowering footprint and delivers strong light intensity, which can be adjusted using dimming or mounting height to suit different stages of plant growth. The full-spectrum output includes warm white (2800–3000K), cool white (4800–5000K), and deep red (650–665nm), supporting healthy development from seedling to harvest.
Smart features include 0–100% dimming, daisy-chain capability, and remote scheduling through the Mars Hydro app (when paired with the iConnect or iControl system). Its bar-style layout ensures even light distribution, while the wave-shaped passive heatsink helps manage heat silently.
For growers working in compact tents, the FC4000 EVO offers a powerful mix of efficiency, spectrum, and smart connectivity. With its build quality and output control, it’s a strong option for those looking to optimize a 2′×4′ indoor grow space.
Amazon link
Mars Hydro website link (Discount code: MRGROWIT)
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LEDs: Samsung LM301H EVO diodes
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PPFD: Up to ~912 µmol/m²/s
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PPF: ~912 µmol/s
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PAR efficacy: ~2.85 µmol/j
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Wattage draw: ~320 W ±5%
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Coverage area: ~2′×4′ ; Max ~3′×5′
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Light distance: N/A
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Dimensions: 44″ × 14″ × 2.5″
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Weight: N/A
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Warranty: 5-year manufacturer warranty in many regions
Spider Farmer SE4500 LED Grow Light
The Spider Farmer SE4500 is a 320 W full-spectrum LED grow light designed for growers who want high efficiency, strong output, and modern control features in a 2′×4′ grow space. It uses Samsung LM301H EVO diodes and delivers a reported PPE of approximately 2.85 µmol/J.
The fixture’s three-bar layout helps distribute light more evenly across the canopy, minimizing corner drop-off and improving overall uniformity. Its full-spectrum output includes 2800–3200K warm white, 4800–5000K cool white, and deep red (660–665 nm), providing balanced coverage for all growth phases from seedling to harvest.
The SE4500 is rated for a 2′×4′ flowering footprint and offers strong photon density. In smaller tents or sensitive grows, it’s best used with some height adjustment or dimming to prevent overexposure.
Smart features include Bluetooth and WiFi connectivity in newer models, allowing control through Spider Farmer’s app. This enables scheduling, dimming, and PPFD targeting. The passive cooling system and aluminum heat sink keep the fixture running quietly and efficiently—especially important in enclosed indoor spaces.
Overall, the SE4500 offers a strong blend of diode quality, spectrum, control, and efficiency, making it a top pick for growers looking to maximize yields in a compact footprint.
Amazon link
Spider Farmer website link (Discount code: MRGROWIT5)
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LEDs: Samsung LM301H EVO diodes
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PPFD: N/A
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PPF: ~913 µmol/s
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PAR efficacy: ~2.85 µmol/j
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Wattage draw: 320 W ± 5%
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Coverage area: 2′×4′ ; Max up to 3′×5′
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Light distance: N/A
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Dimensions: 45.38″ × 14.51″ × 3.03″
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Weight: 10.2 lbs
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Warranty: 5-year manufacturer warranty
Grand Master LEDs Tarantula Revolution 320 LED Grow Light
The Tarantula Revolution 320 is a 320W full-spectrum LED grow light built for growers who want commercial-grade performance in compact grow spaces like 2′×4′ tents or vertical rack setups. Featuring premium LEDESTAR diodes and a 730nm far-red component, this fixture supports vigorous growth across all stages—from seedling to flower.
Its folding design allows for quick installation and easy storage, while the IP66 waterproof rating makes it ideal for humid environments where durability is a must. The unit is ETL listed and backed by a 5-year warranty, highlighting its quality construction.
For flexibility, the Revolution 320 includes knob dimming and RJ14 controller compatibility, allowing you to reduce output during early growth phases or in smaller setups. It’s rated for a 2′×4′ to 2.5′×5′ flowering footprint, though you may need to dim the light or mount it higher to avoid excessive intensity.
Overall, the Tarantula Revolution 320 combines rugged build quality, efficient output, and smart adaptability—making it a solid option for small-space growers who want pro-level features in a compact, easy-to-manage fixture.
Grand Master LEDs USA website link (Discount code: MRGROWIT)
Grand Master LEDs Canada website link (Discount code: MRGROWIT)
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LEDs: LEDESTAR diodes (including 730 nm far-red)
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PPFD: N/A
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PPF: ~845 µmol/s
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PAR efficacy: ~2.6 µmol/j
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Wattage draw: ~320 W
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Coverage area: 2′×4′ or 2.5′×5′
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Light distance: 12-18″
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Dimensions: 43.66″ × 21.93″
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Weight: 12.39 lbs
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Warranty: 5-year warranty
AC Infinity IONGRID T24 LED Grow Light
The AC Infinity IONGRID T24 is a full-spectrum LED grow light designed for growers who want efficient output and deep canopy penetration in a 2′×4′ grow space. Built with premium Samsung LM301H diodes, it runs at approximately 260 watts and delivers a reported efficacy of around 2.75 µmol/J. Under ideal conditions, PPFD can reach up to 1,728 µmol/m²/s, offering serious intensity for flowering plants.
What makes the T24 stand out is its “halo” form factor, which spreads light more evenly across the canopy, reducing hot spots and increasing overall penetration—especially useful in tight tents. Its integrated digital controller allows 0–100% PWM dimming, scheduling, and daisy-chaining, making it easy to adjust output for different growth stages.
The fixture features passive cooling, an air-suspended driver, and an aluminum heatsink for quiet operation and thermal efficiency—ideal for small indoor environments.
While the T24 offers more than enough output for its rated footprint, its real strength lies in its flexibility. By adjusting the height or dimming the light, you can fine-tune intensity while benefiting from high-efficiency diodes and smart control. It’s a great option for growers seeking both performance and precision.
Amazon link (Discount code: MRGROWIT15)
AC Infinity website link (Discount code: MRGROWIT15)
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LEDs: Samsung LM301H diodes
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PPFD: ~1,728 µmol/m²/s
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PPF: N/A
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PAR efficacy: ~2.75 µmol/j
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Wattage draw: ~260 W
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Coverage area: 2′×4′
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Light distance: 12-18″
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Dimensions: 28.89″ × 12.99″
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Weight: ~19 lbs
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Warranty: 2-year warranty
AC Infinity IONFRAME EVO3 LED Grow Light
The AC Infinity IONFRAME EVO3 is a commercial-grade, full-spectrum LED grow light rated at 280 watts, built for serious indoor growers who want high efficiency and smart control in a compact setup. It features Samsung LM301H EVO diodes arranged in an algorithmic pattern across bar-style boards, offering uniform light spread and minimal hotspots.
With a reported PPE of up to 3.14 µmol/J and PPFD around 1,745 µmol/m²/s, this fixture delivers high-output performance ideal for flowering in a 2′×4′ grow space. The full-spectrum output includes UV (395 nm), deep red (660 nm), and far-red (730 nm), making it suitable for all growth stages.
The EVO3 integrates with AC Infinity’s UIS™ platform, allowing smart scheduling, dimming (10 brightness levels), and remote app control. It also supports daisy-chaining up to 80 units, offering scalability for larger grows.
Additional features include a removable driver, passive cooling, and a fanless design, which keeps the fixture quiet and cooler—important in enclosed grow tents.
With top-tier diodes, smart functionality, and precise light distribution, the IONFRAME EVO3 is a powerful, efficient lighting solution for growers who prioritize control, reliability, and performance in a 2′×4′ setup.
Amazon link (Discount code: MRGROWIT15)
AC Infinity website link (Discount code: MRGROWIT15)
Happy Hydro link
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LEDs: Samsung LM301H EVO chips
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PPFD: ~1,745 µmol/m²/s
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PPF: N/A
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PAR efficacy: ~3.14 µmol/j
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Wattage draw: 280 W
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Coverage area: 2′ × 4′ or 3′ × 5′
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Light distance: N/A
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Dimensions: 16.14″ × 32.67″ × 3.03″
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Weight: 22 lbs
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Warranty: 2-year warranty
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