Grow Light Science PROGROW 850


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The PROGROW 850 is a full-cycle top lighting solution for commercial or residential cannabis cultivation.  The 850’s form factor allows for scalability and multiple grow room and grow tent configurations where photosynthesis and yield maximization is the aim.  The PROGROW 850 delivers high PPFD levels for use with 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 Samsung and Ledestar LEDs

  • Built-in dimming control knob

  • Dual RJ12 Ports For External Control

  • High CRI – 93

  • 5-Year Warranty

  • 120 Day Satisfaction Guarantee





5’ x 5’ Reflective Walled Area

Dark Colored Floor, Mounting Height = 18”, Single PROGROW 850, 100% Power​

Dark Colored Floor, Mounting Height = 32”, Single PROGROW 850, 100% Power

Average PPFD in a 5×5 tent: 949 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 850 will deliver PPFD levels over 1,400 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: 850 Watts @120v, 7.08A

Spectrum: GLS HI red

Beam angle: 120°

CRI: 93

PAR Efficacy: 2.66 μmol/J

PPF: 2261 μmol/s

Dimmable: Yes, 1-10v 0-100%

Coverage Area: 5′ x 5′

Hang Height: Minimum 6″ above canopy

Dimensions: 47.2″ x 42.8″ x 3.2″

Lifetime: Q90 > 90,000 hours

Weight: 30.2 lbs

Voltage: AC120~270V

Includes rope ratchet hangers: Yes

Certifications: ETLUL 1598, UL 8800

Manufacturer’s Warranty: 5 year

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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