February 22, 2022

The best grow light for a 3ft x 3ft or 1m x 1m grow tent 2022

By Shane Torpey
The best grow light for a 3ft x 3ft or 1m x 1m grow tent 2022

The best grow light for a 3ft x 3ft or 1m x 1m grow tent 2022 

I have tested 5 of the best grow lights for a 3ft x 3ft or 1m x 1m grow tent and compare them for PAR output, efficiency and value for money.

The 3ft x 3ft or 1m x 1m grow area will deliver a good yield for personal use in a compact grow space. To maximise the potential yield from the space you need about 200 to 300 watts of high efficiency LED lighting. Ideally the light fixture will be suitably sized to cover the area evenly i.e. the fixture is square and close to the physical size of the grow tent. The PAR chart is shown below for each model so you can judge the best solution for your grow space.


 All of the lights have a mixture of mid temperature white LEDs with 660nm reds to improve their electrical and photosynthetic efficiency. Therefore all of the grow lights tested are full spectrum and suitable for growing from seed to harvest.

Grow light comparison method

The comparison chart uses the results from Shanes PAR output and efficiency tests to calculate and compare the total cost of each fixture to deliver an average PAR of 750µmols/m²/second over 1m² grow area over a 3 year period. The 3 year costing includes the cost of the fixture and adds the electricity costs at 17c/KW hour over 14 hours per day average.

The best grow light for a 3 x3 or 1m x 1m grow tent comparison chart


Our own MIGRO ARAY is designed by Shane and built here at MIGRO. The ARAY 3 is the largest LED bar type light on the list and delivers a very even spread across the grow area with the lowest hanging height of all the lights tested.

The high efficiency LED driver can be located outside of the grow tent to minimise heat in the grow tent and has on board dimming so you have full control for all stages of growth. 

ARAY 3 PAR chart

The ARAY 3 is excellent build quality and uses the highest quality and efficient white LEDs by Seoul Semiconductors and Osram 660nm reds.

Buy the ARAY 3 here

Grow 200 by Grow Light Science

The Grow 200 is the lowest wattage tested and the lowest PAR output but is also the highest system efficiency and has a relatively low purchase prise per watt.

The Grow 200 in a 3 x 3 or 1m x 1m grow tent

The fixture is rectangular in shape so the spread of light across the grow area is not the most uniform but it delivers a good average PAR of 588 µmols/m²/second and a very good system efficiency of 2.36 usable PPF/watt.

Grow 200 PAR chart in a 3 x 3

This is a well built fixture with on board dimming and high end white Samsung LEDs & Osram 660nm reds for higher system and photosynthetic efficiency. A 5 year warranty and UL certification is standard for all models.

Growealth G3000

The Growealth G3000 is a 300W LED grow light suitable for a 3ft x 3ft or 90cm x 90cm grow area with a wideband spectrum with added IR and UV.

The Growealth G3000

The Growealth G3000 is an excellent value for money grow light. The G3000 is 300 watts of White and Red LEDs with added 15W each of Infra Red and UVA LEDs. Although it is not the highest build quality of the lights in this list it delivers a high PAR intensity and good spread.

Growealth G3000 PAR chart

This fixture delivers the highest average PAR of all the models chosen and has the added benefit of a wide band spectrum with added UVA and Far red.

Growwealth G3000 with added UVA and Far Red



 MAXSISUN MG3000 (discontinued)

Maxsisun is one of Shanes' favourite LED grow light brands because of the mix of excellent build quality and low price. The MG3000 is designed for a 3ft x 3ft or 90cm x90cm space and to hang at 40cm or 16" over the plant canopy.

MAXSISUN MG300 for a 3x3 of 1m x 1m grow tent
The light spread is excellent and in our test the fixture output an average PAR of 698 µmols/m²/second over the 3ft x 3ft plant canopy and consumed 278.1 watts for a calculated system efficiency of 2.03 µmols/watt or usable PPF/watt.
Maxsisun MG3000 PAR chart
It is very solidly built light that has a quality feel and all the features you need including: Full spectrum light output with added far red LEDs, on board dimming, Meanwell driver and comes full built.

The Photontek (Lumatek) SQ300W PRO

The Photontek SQ300 PRO LED grow light and the European version ATS300W are in an interesting concentric square led bar form. It is full assembled and only requires plugging in and hanging to setup. There is a 10ft or 3.5m long power cable and onboard dimming controls. The light output is full spectrum and suitable for growing from seed to harvest. There are also added far red LEDs to broaden the spectrum up to 750nm.
Photontek SQ300 PRO
The light spread is excellent and allows for good coverage over its specified 3.5ft x 3.5ft (1m x 1m) grow area. It delivers an average 638 µmols/m²/second which is a good performance level. The system efficiency is 2.02 usable PPF per watt which is a good level. The FAR red LED output is not measured in the PAR test but is about 8% of the fixture output. If added to the total output calculation the system efficiency from 400nm to 750nm is 2.18 usable PPF per watt
Photontek SQ300 PRO PAR chart in a 1m x1m space