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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
HLG 350 Diablo LED light in hanging position, displaying bottom quantum boards and connected driver on top.

HLG 350 Diablo Full Spectrum LED Light

by Horticulture Lighting Group
$549.00 - $598.00
$549.00
$549.00 - $598.00
$549.00

Get 20% Off with HLG20

All domestic orders ship in 1-4 business days. International orders ship in 5-10 business days.

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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.

High-Output 330W LED—HLG 350 Diablo Maximizes Yields While Cutting Energy Costs

Maximize yield in tight spaces with 600W HPS power at just 330 watts.

The HLG 350 Diablo is a powerful, high-efficiency LED grow light designed to replace a 600W HID using only 330W. Featuring two Advanced Design Diablo Quantum Boards, this fixture delivers full-spectrum white light with deep red (660nm) for optimal plant growth and flowering. Its rectangular footprint and integrated reflectors ensure even light coverage, making it ideal for flowering in smaller grow spaces or vegging in commercial setups. With an impressive efficacy of 2.80 PPF/W, this fixture maximizes yield while reducing energy consumption.

Is the HLG 350 Diablo Energy-Efficient?

Absolutely. With an efficacy of 2.80 µmol/J, this fixture outperforms traditional HID systems (1.3–1.7 µmol/J), delivering more usable light per watt while lowering power costs. Backed by a 5-year warranty and UL 8800, CSA, and DLC certifications, the HLG 350 Diablo is a top choice for serious growers looking to maximize efficiency and yield.

Features

  • 35" wide design for even light coverage
  • Powered with high efficiency Diablo™ Quantum Boards® for 2.80 PPF/W
  • 950+ PPF high output to replace even 600W HPS
  • Full spectrum white and 660nm red
  • Reliable passive-cooled design
  • Better canopy light penetration with diffused light
  • 0 to 330 Watts dimming design
  • Auto sensing Inventronics power supply works on 120VAC, 240VAC, and 277VAC

What's Included?

  • HLG 350 Diablo Lamp
  • Hanging Hardware
  • Rope Ratchets

Download Resources

Spectrum

PPFD

Specifications

Power: 0-330 Watts

Voltage Range: 120-277 VAC 50-60Hz

LED Type: Full Spectrum White & Deep Red

Flowering Footprint: 3' x 5' at 15"

Vegetative Footprint: 4' x 5' at 24”

System PPF Efficacy: 2.80 μmol/joule

Total Output: 950+ PPF

Dimensions: 35" x 9.5" x 3.25"

Product Weight: 10 lbs

Recommended Mounting Height: 15" - 24" above canopy

Certifications: UL 8800, UL 1598, CSA, DLC

Who Should Use This LED Light?

  • Home and commercial growers replacing 600W HID with a more efficient 330W LED.
  • Small-space cultivators optimizing flowering in a 3' x 5' footprint.
  • Commercial veg growers using it for 4' x 5' vegetative setups.
  • Energy-conscious growers leveraging 2.80 µmol/J efficacy for high efficiency.
  • Automated grow rooms integrating 0-330W dimming with GrowFlux wireless compatibility.

Best Applications

  • 3' x 5' flowering setups delivering 950+ PPF for dense, high-quality yields.
  • 4' x 5' vegetative spaces ensuring uniform canopy development.
  • Small and mid-size grow tents benefiting from diffused light for better penetration.
  • Growers upgrading from HPS achieving better light quality while reducing heat and energy costs.
  • Precision-controlled grow environments using dimmable power for adaptable light intensity.

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.

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.

Customer Reviews

Based on 2 reviews
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M
Mia Thorne
Unmatched Efficiency in Grow Lighting

This light's efficiency is unmatched. The ability to dial down the wattage without sacrificing quality or coverage has been a major plus for me, saving money while keeping my plants happy and healthy.

C
Cris Thomas
Full Spectrum for Small Setups

Upgraded to the Diablo 350 from a less impressive light, and I'm impressed! The full spectrum with deep red LEDs seems to be making a big difference in my plants' overall health and growth, even in my limited space.