Grow Light Science PROGROW 320


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The PROGROW 320 is a full-cycle top lighting solution for commercial or residential cannabis cultivation.  The 320’s form factor allows for scalability and multiple grow room and grow tent configurations where photosynthesis and yield maximization is the aim. The PROGROW 320 delivers high PPFD levels for use with or without CO2 supplementation. Top-shelf light output (PPF), spectral distribution, and efficacy will deliver amazing results with a modest impact on your wallet. Try risk-free for 120 days.


Key Features

  • GLS HI-RED spectrum

  • Top Bin LEDs

  • Built-in dimming control knob

  • Dual RJ12 Ports For External Control

  • High CRI – 93

  • 5-Year Warranty

  • 120 Day Satisfaction Guarantee





2’ x 4’ Reflective Walled Area

Dark Colored Floor, Mounting Height = 24”, Single PROGROW 320, 100% Power

Average PPFD in a 2×4 tent: 1038 umol/s/m2

Cannabis yields are a function of light intensity. Recent studies show that PPFD levels as high as 1,500 umols/m2/s will deliver a proportional increase in yields so long as other critical inputs are kept in balance. These include CO2, water, and nutrients. The PROGROW 640 will deliver PPFD levels over 1,000 umols/m2/s, whether arranged individually or in an array of multiple units. We recommend that all growers study and experiment within their grow space to devise the best combination of inputs.




Wattage draw: 325 Watts @ 120V

Spectrum: GLS HI red

Beam angle: 120°

CRI: 93

PAR Efficacy: 2.61 μmol/J

PPF: 848 μmol/s

Dimmable: Yes, 1-10v 0-100%

Coverage Area: 2′ x 4′

Hang Height: Minimum 6″ above canopy

Dimensions: 47.2″ x 14″ x 3″

Lifetime: Q90 > 90,000 hours

Weight: 11.8 lbs

Voltage: AC100~277V

Certifications: ETLUL 1598, UL 8800

IP Rating: IP66

Manufacturer’s Warranty: 5 years

Return/Refund Policy: Try risk-free for 120 days. If not satisfied, you may return product for a full refund (freight excluded). Product must be in “like new” condition (no dents, scratches, etc.) and returned with all original packaging materials.


PROGROW 640 featured in ‘Best LED Grow Lights 2022’


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