Best LED Grow Lights 2020 | 3x3 Coverage Area

Updated: Jul 25, 2020

Growers often spend hours upon hours researching different grow methods and searching for the best grow equipment. One of the more difficult pieces of equipment to research is lighting. There are several different types of lights used for growing plants and dozens of different technical specifications to know. This makes is extremely challenging to learn and filter through the hundreds of grow lights on the market today. I’ve been studying horticulture lighting and growing with LED grow lights for over 5 years now and I’m often asked what are the best LED grow lights on the market today.

In this article, I will reveal my picks for the Best LED Grow Lights in 2020. This list will include LED grow lights that have a flowering coverage area of 3’x3’ and are best for a full-cycle grow (from seedling through flowering). These are complete fixtures only. This list does not include DIY grow lights or lights that require significant assembly. The grow lights are listed in no specific order. For a LED grow light to make this list, I factor in: PAR output, efficiency, spectrum, light spread, diodes, drivers, and warranty. Since prices are always changing, click either the Amazon link or LED Grow Lights Depot link under each light for the most up-to-date price.

Need a better understanding of PAR output, spectrum, efficacy, energy consumption, or light spread? Check out this complete Buyer’s Guide for LED Grow Lights

Enlite Ceres 520w LED Grow Light

The Enlite Ceres 520w is a dimmable, full-spectrum LED Grow Light suitable for a 4' x 4' vegetative space or a 3' x 3' flower space. The fixture has a super-thin profile, only two inches thick. Combined with a relatively short hanging height of six to twelve inches, it's well suited for short grow spaces. It also has an unusual folding design, which depending on the grow tent, can be custom-fit to the canopy space. The system draws 520w of power but disperses a powerful PPFD of 583 μmol/s/m² in the vegetative stage to 1160 μmol/s/m² in flower. Enlite Ceres 520w contains full-spectrum Samsung LM301H diodes, with increased attention on red for improved final yields. It also has a moderate PAR efficacy of 2.45 µmol/J. Finally, as per most reputable LED grow light brands today, the Enlite Ceres comes with a 3-Year Limited Warranty.

LED Grow Light Depot link

LEDs: Full Spectrum Samsung LM301H diodes

PPFD: 583 to 1160 μmol/s/m² (veg versus flower)

PPF: 1274 µmol/s

PAR efficacy: 2.45 µmol/J

Wattage draw: 520w

Coverage area: Vegetative 4’ x 4’, Flowering 3’ x 3’

Light distance: 6" to 12"

Dimensions: 33.0" x 33.0" x 2.0"

Weight: 26.8 lbs

Warranty: 3 Year Limited Warranty

Growers Choice ROI-E420 LED Grow Light

A long time cultivator favorite is the Growers Choice ROI-E420 LED grow light. Built to harness the power of intense LEDs, but with a sleek, slim frame, this fixture delivers a PPF of 1090 µmol/s with a system efficiency of 2.60 µmol/J. And the power draw? Only 420 watts, which should provide 40 percent savings over a standard HPS light. Although the flowering coverage area stated is 3.5'x3.5', this LED grow light would perform excellent in a smaller, 3'x3' grow space. Growers Choice creates a fixture using only GC-3K Full Phase Spectrum Osram Top Bin Diodes, which are considered some of the best diodes on the market. These deliver a full spectrum of light, tailored explicitly to growing inside. Depending on the application, this LED grow light has a recommended hang height of between six to 24 inches above and comes with an onboard dimming function. Growers Choice is compatible with most light controllers on the market, including their own. All Growers Choice products, including this ROI-E420 model, come with a 3-Year Limited Warranty.

Happy Hydro link (Discount code: MRGROWIT)

LED Grow Light Depot link

LEDs: GC-3K Full Phase Spectrum Osram Top Bin Diodes

PPF: 1090 µmol/s

PAR efficacy: 2.60 µmol/J

Wattage draw: 420w

Coverage area: Vegetative 4’ x 4’, Flowering 3.5’ x 3.5’

Light distance: 6" to 24"

Dimensions: 35.3" x 34.6" x 3.2"

Weight: 19.4 lbs

Warranty: 3-Year Limited Warranty

The Green Sunshine Company ES180 V2 LED Grow Light

A comparatively low power draw (at just 180w) but with quality PAR efficacy of 2.30 µmol/J, this Green Sunshine Company Electric Sky 180 V2 (ES180 V2) is an affordable LED grow light solution. The LEDs are GS1 Wideband spectrum promising continuous 400nm to 780nm response. This specific spectrum improves vegetative growth while boosting flower yields. The Green Sunshine company measures Biological Photon Flux Density (BPFD) for the light spectrum, instead of PPFD to better account for its fixtures' UV and infrared spectrum. In this case, the ES180 V2 has a BPFD of 582 µmol/s/m². It provides lots of headroom, with an ideal hang height between 18" to 36" and is advertised for a 2' by 4' vegetative grow or a 2.5' to 5' flowering room, although, two of these grow lights would perform excellent in a 3'x3' grow space. It comes with the standard 3 Year Limited Warranty.

The Green Sunshine Company link (Discount code: MRGROWIT)

Happy Hydro link (Discount code: MRGROWIT)

LED Grow Light Depot link

LEDs: GS1 Wideband Spectrum, Continuous 400nm to 780nm response

BPFD: 582 µmol/s/m² (21” light distance)

PAR efficacy: 2.30 µmol/J

Wattage draw: 180w

Coverage area: Vegetative 1.5’ x 3’ to 2’ x 4′, Flowering 2’ x 4’ to 2.5' × 5′

Light distance: 18" to 36"

Dimensions: 24.5” x 12” x 2.4”

Weight: 14.5 lbs

Warranty: 3 Year Limited Warranty

HLG 225 LED Grow Light

The Horticulture Lighting Group (HLG) launched the 225 LED Grow Light to replace a conventional 315W CMH. Drawing only 225 watts and producing a 1.9 µmol/J system efficacy, this fixture is useful for both vegetative and bloom cycles. The high-efficiency white LEDs benefit from the addition of red (630nm) and deep red (660nm) diodes for additional yield improvements. For improved canopy penetration, HLG has designed this with a light diffuser. Growers report an impressive spread, especially from a direct LED light like this style. It is an ideal light for a small 3' x 3' grow space. Unlike a conventional CMH fixture, the HLG 225 LED Grow light is passively cooled. With no mechanical parts, heat dispersion is much less of a concern. Designed and produced in the USA, it comes with a 3 Year Warranty.

LED Grow Light Depot link

Amazon link

LEDs: LumiLED 4000K white light diodes, Luminus 630nm red and Luminus 660nm deep red diodes

PPF: 410 µmol/s

PAR efficacy: 1.9 µmol/J

Wattage draw: 225w

Coverage area: Vegetative 4’ x 4’, Flowering 2' x 2.5' or 3' x 3'

Light distance: 18” to 24”

Dimensions: 12.5" x 8" x 3.5"

Weight: 9.98 lbs

Warranty: 3 Year Limited Warranty

HLG 300L V2 RSpec LED Grow Light

The 300L V2 RSpec is a unique product by HLG, which combines two full-spectrum high-efficiency white light quantum boards into one fixture. These boards use Samsung LM301H white LEDs, some of the highest quality in the LED industry. Additionally, HLG has supplemented the full-spectrum white light with deep red LED 660nm, to better suit indoor growing. The unit pumps out 700 µmol/s, which is suitable to replace a 600 watt HID. As an added efficiency, it has a dimmable power supply, rated between 90 to 270 watts. This model works for a 4' x 4' vegetative grow space or a slightly smaller 3' x 3' flowering space. As with other HLG LED grow lights, growers have noted that the 300L V2 RSpec delivers better canopy penetration through diffused lighting. HLG designs and manufactures all their LED grow lights in the USA, and offers a 3 Year Limited Warranty.

LED Grow Light Depot link

Amazon link

LEDs: Samsung LM301H and Deep Red LED 660nm

PPF: 700 µmol/s

PAR efficacy: 2.60 µmol/J

Wattage draw: 90-270w (dimmable)

Coverage area: Vegetative 4’ x 4’ , Flowering 2.5' x 2.5' or 3' x 3'

Light distance: 18" to 24"

Dimensions: 26" x 10" x 3"

Weight: 12.38 lbs

Warranty: 3 Year Limited Warranty

Timber Grow Lights 4VS LED Grow Light

A slightly different take on the standard LED grow light is the Timber Grow Lights 4VS. This fixture relies on 4 Vero29 Gen 7 COB style LEDs instead of conventional chip diodes. Although it no longer ships with reflectors (as some images still show), the PPFD remains at 1083 μmol/s /m² (and the PPF is listed as 932 µmol/s). Timber reports that without reflectors, it's safer to lower these lights closer to the canopy. Each Timber Grow Light 4VS comes custom-built in San Diego, California, and all are customized to color temperature: 1750K, 3000K, 3500K, or 4000k. All Timber grow lights also come with a 3 Year Limited Warranty, which is by now the industry standard. This is a full coverage fixture covering up to 3' x 3' no matter the growth stage. This LED grow light helpfully comes preassembled for quick and simple install.

Happy Hydro link (Discount code: MRGROWIT)

LED Grow Light Depot link

LEDs: Vero29 Gen 7 COB LEDs

PPFD: 1083 μmol/s /m²

PPF: 932 µmol/s

PAR efficacy: N/A

Wattage draw: 425w

Coverage area: Full coverage 6’ x 6’, Flower 3’ x 3’

Light distance: 12” to 36”

Dimensions: 21” x 20” x 4”

Weight: 19.0 lbs

Warranty: 3 Year Limited Warranty

NextLight Core LED Grow Light

The NextLight Core is perhaps one of the most efficient lights on the market. It has a 2.00 µmol/J system efficacy, and only pulls 190 watts. Called "Core" for a reason, this fixture focuses on the pure white spectrum, using 3000k and 5000k full spectrum Samsung LM561B+ diodes. The NextLight Core, like all the NextLight products, mimics the range of the sun, for a healthy indoor grow. It's essentially just a redesign of the NextLight Mega, but more suitable for smaller spaces. It has a PPF of 380 µmol/s, which, when placed 8" to 18" above canopy height, covers 4' x 4' in veg stage or 3' by 3' in flower. NextLight is one of the few manufacturers with the L90 seal of approval for lifespan, and therefore this made in America LED grow light has an impressive 5 Year Full Warranty.

LED Grow Light Depot link

Amazon link

LEDs: Samsung LM561B+ diodes

PPF: 380 µmol/s

PAR efficacy: 2.00 µmol/J

Wattage draw: 190w

Coverage area: Vegetative 4’ x 4’, Flowering 3' x 3'

Light distance: 8" to 18"

Dimensions: 20.9” x 22” x 2.5”

Weight: 9 lbs

Warranty: 5 Year Limited Warranty


The Parfactworks 1000W model is an affordable, Chinese made option for a grower on a budget. Designed with 10W Bridgelux and Epiled LEDs plus two additional 3000K COB lights, this fixture delivers approximately 1000 μmol/s/m² when hung at an 18" height over the canopy. It contains 20 full spectrum CREE COBS but has an additional 80 Bloom Enhancer SMD to improve both vegetative and flower growth. The wattage is 380 watts, and the canopy coverage is impressive, with the standard 4' by 4' for the vegetative cycle, but up to 4' x 3' in flower. Although after testing this LED grow light, I think it's best suited for a 3' x 3' flowering grow space. The model is designed for daisy-chaining and comes with a 3 Year Limited Warranty. This Parfactworks unit has been rated for a 50,000-hour lifespan.

Amazon link

LEDs: 10W Bridgelux/Epileds LEDs + 2pcs 3000K COB

PPFD: 1000 μmol/s/m²

PAR efficacy: N/A

Wattage draw: 380w

Coverage area: Vegetative 4’ x 4’, Flowering 4' x 3'

Light distance: 18" to 40"

Dimensions: 15.7” x 7.8” x 3”

Weight: 7.7 lbs

Warranty: 3 Year Limited Warranty

FGI Square 3 320W LED Grow Light

A uniquely designed LED grow light, the Forever Green Indoors (FGI) 3 320W LED square looks notably different from that of most others on the market. It has three concentrically larger squares of LEDs, for a total size of 22" by 22". This configuration allows for covering veg spaces up to 4' by 4' and flowering spaces of 3' by 3'. It has a PPF of 700 µmol/s thanks to the Shenzhen Ledida diodes. These are full-spectrum, with the addition of approximately six percent 720nm infrared plus and twenty-seven percent 660nm red. However, the Shenzhen Ledida diodes have a 30,000 life span, which is lower than the industry standard. This spectrum is ideal for flowering. In terms of system efficacy versus power draw, it's sitting in the middle of the pack at 2.3 µmol/J for 320 Watts. Unlike other LED grow light manufacturers, FGI does not have a warranty policy.

Amazon link

LEDs: Shenzhen Ledida diodes. Including 6% 720nm infrared plus + 27% 660nm red

PPF: 700 µmol/s

PAR efficacy: 2.3 µmol/J

Wattage draw: 320w

Coverage area: Vegetative 4’ x 4’, Flowering 3' x 3'

Light distance: 12" to 24"

Dimensions: 22" x 22" x 4”

Weight: 13 lbs

Warranty: 60 Day return policy, no warranty on used items

Mars Hydro TSW2000 LED Grow Light

Mars Hydro designed the TSW model to replace 450 HID watts, however through the power of LED grow lights, these fixtures pull 300 watts. It remains affordable through the use of Epistar Full-spectrum 3030 chips (warm white, blue light, red light, infrared), but still has an impressive PPFD of 980 µmol/m²/s. Mars Hydro improves the PPFD by at least 30 percent with the addition of a reflector. This is a dimmable model, with a light spectrum applicable across the growing cycle from veg to bloom. As an LED grow light, there are no fans nor mechanical parts, meaning no noise and low heat output, making it ideal for small spaces. These lights have a 50,000 hour expected life span and are made in China, with a 3 Year Limited Warranty.

Mars Hydro link (Discount code: MRGROWIT)

LED Grow Light Depot link

Amazon link

LEDs: Epistar Full-spectrum 3030 chips, warm white, blue light, red light, infrared

PPFD: 980 µmol/m²/s

PPF: 972 µmol/s

PAR efficacy: 2.35 µmol/J

Wattage draw: 300w

Coverage area: Vegetative 4’ x 4’ , Flowering 3' x 3'

Light distance: 12” to 24”

Dimensions: 19.6" x 17.3" x 3.5"

Weight: 7.7 lbs

Warranty: 3 Year Limited Warranty

Which LED grow light do you think is the best on this list? Do you think any other LED grow lights (with a 3’x3’ flowering coverage area) should have made this list? I’d also love to hear from growers using these LED grow lights. What do you like/dislike about these LED grow lights?

NEXT: LED Grow Light Buyers Guide


Beginners Start Here


Grow Equipment

Grow Room & Nutrients

Seedling Stage & Cloning

Vegetation Stage

Flowering Stage


Plant Problems

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