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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only
Growers Choice ROI-FF 650W 4 x 4 Flowering Light LED Light Grower's Choice

Growers Choice ROI-FF 650W 4 x 4 Flowering Light

by Grower's Choice
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$699.00
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$699.00

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Energy Rebates & Bulk Pricing Available

SAVE BIG on your grow setup! Email or call us at (973) 206-7590. For rebates eligibility, click here.

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Get an additional 3% off when you pay by ACH, Money, or Zelle. Select your option at check out.

We accept all major credit cards, crypto and Paypal 0% credit plans. More details here.

Full Manufacturer’s Warranty

You buy it, we back it! Your purchase is fully covered with a manufacturer’s warranty. More details here.

Get to Know the Growers Choice ROI-FF 650W 4 x 4 LED Light

The Growers Choice ROI-FF 650W is built for serious cultivators who demand precision lighting for high-yield flower rooms. Consuming 650W while delivering a powerful 1950 PPF output, this fixture pushes an impressive 3.0 µmol/J efficiency—giving your plants maximum usable light for explosive growth. Engineered with state-of-the-art diodes and drivers, the ROI-FF 650W’s 3K spectrum is optimized for flowering, ensuring dense buds, enhanced terpene profiles, and superior cannabinoid production.

Is the ROI-FF 650W Energy-Efficient?

At 3.0 µmol/J, this LED grow light outshines standard DE HPS systems (1.7–2.1 µmol/J) by delivering more usable photons per watt. This translates to lower electricity bills, reduced HVAC strain, and bigger harvests. If you want higher yields without higher costs, the ROI-FF 650W is a no-brainer for commercial flower operations.

Spectrum

Features

  • 0-10v Dimming
  • 108-480VAC Input
  • On board dimming
  • IP66
  • DLC, ETL

What's Included?

  • ROI-FF Series LED System
  • 1ft NEMA 6-15P 240V - M25 Plug • RJ Data Cable
  • 240V/120V Adaptor
  • User Manual
  • Rope Ratchet

Download Resources

Who Should Use This LED Grow Light?

  • Commercial cannabis growers optimizing flower rooms for peak yields.
  • Indoor cultivators seeking high 3.0 µmol/J efficiency for cost-effective production.
  • Growers replacing HPS with a more energy-efficient 3K spectrum alternative.
  • Facilities scaling up with powerful, high-output LED lighting.

Best Applications

  • Flowering phase where a 3K spectrum enhances bud density and potency.
  • High-yield grows needing 1950 PPF to maximize cannabinoid production.
  • Energy-conscious setups cutting costs while increasing light penetration.
  • Large grow operations benefiting from advanced diode & driver technology for longevity.

Why Shop with Grow Light Central?

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

Grow Light Central is a cannabis equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best cannabis facilies across the country.

With years of cannabis growing experience, Anthony, the owner and operator, personally ensures every order is handled right. No passing you off, no runaround, just the expert service and advice you deserve.

Specifications

Model: ROI-FF

Light Source: LED

Spectrum: GC-3KF

PPF (µmol/s): 1950 µmol/s

Input Power: 650W

PPE (µmol/J): 3.0 µmol/J

Color Render Index: ≥86

Fixture Dimension (L×W×H):

  • 45”L × 44”W × 4.2”H
  • 114.3 cm × 104 cm × 11 cm

Fixture Weight:

  • 22 lbs / 9.9 kg

Mounting Height: 6" - 24" (15.2 - 61 cm), depending on application

Thermal Management: Passive

Power Driver: Isolated Driver

Driver Efficiency: ≥90% (220V AC input)

Dimming: 0-10V & Step Dimming

Dimming Range: 10% - 100%

Light Distribution: 120°

Maximum Ambient Temperature: 104°F / 40°C

Power Factor: >0.9

Certifications: ETL, CE, DLC

Lifetime: Q90>54,000 hrs

Warranty: 5 Years Standard Warranty

Amperage by Voltage Service @ 650W

  • 120V: 5.55A
  • 240V: 2.8A
  • 277V: 2.4A
  • 480V: 1.4A

FAQs

How many watts do I need for my grow space?

The wattage depends on the size of your grow tent or room. A general guideline is 30-50 watts per square foot for high-light plants like cannabis. For example, a 2x2 ft area may need 100-200W, while a 4x4 ft area may require 400-600W for optimal coverage.

What is the difference between full-spectrum and red/blue LED grow lights?

Full-spectrum LED lights mimic natural sunlight, providing a balanced mix of blue (for vegetative growth) and red (for flowering and fruiting) light. Red/blue LED lights focus on specific wavelengths but may not support plants as effectively as full-spectrum lights.

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