- HLG 750 Diablo Light Fixture
- Dimmable Power Supply
- Hanging Hardware
HLG 750 Diablo Full Spectrum LED Grow Light
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- Delivers 2056 PPF with 2.88 µmol/J efficacy for high-intensity coverage
- Four Diablo Quantum Boards with integrated reflectors for uniform light distribution
- Covers a 5x5 ft flowering area with a dimmable 715W power supply
- 5-year warranty
- View More Details
Order today, ships between June 12 - July 3, 2026
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We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are upgrading to Diablo boards because your current lights leave weak, wispy growth around the tent edges.
- You are adding integrated reflectors because you need light to penetrate deep into the canopy for denser lower growth.
- You are moving to passive cooling because you want to eliminate fan noise and mechanical failure points in the room.
What We Found
- The integrated reflectors actually focus light downward, which helps your lower canopy fill out much better.
- We noticed the passive cooling fins stay surprisingly cool even after hours of running at the full 715-watt draw.
What Users Say
- Users who switched to these boards say they stopped seeing stunted growth at the very edges of their flood tables.
- Operators who upgraded to the GrowFlux option say remote intensity control saved them from manual daily adjustments.
HLG 750 Diablo Full Spectrum LED Grow Light
Struggling to achieve dense, high-quality yields from corner to corner? The HLG 750 Diablo is engineered to solve that problem, delivering intense, uniform light coverage that pushes your plants to their full potential. This powerful fixture utilizes four advanced Diablo Quantum Boards®, a technology that ensures an exceptionally even light spread, making it a perfect fit for grow tents, flood tables, and rolling benches. For growers working in slightly smaller footprints, the HLG 350 Diablo offers this same award-winning technology in a more compact design.
The integrated reflectors enhance photon delivery deep into the canopy, boosting the quality and density of lower buds. With a staggering output of over 2056 PPF and a photon efficacy of 2.88 µmol/J, this light provides a plant-centric white spectrum enriched with deep red wavelengths to drive vigorous growth through all stages. The entire unit operates silently and reliably thanks to its passive-cooled design, making it one of the top-tier LED grow lights available.
What's Included
Features
⚡️
Incredible Power & Efficacy
Delivers a massive 2056 PPF output, comparable to the high-intensity performance of the HLG 750 Diablo X.
💡
Diablo Quantum Boards®
Four advanced boards create an exceptionally uniform light spread, eliminating hotspots.
🌿
Full Spectrum Light
Plant-centric white and deep red light fuels vigorous growth; further enhance your spectrum with the HLG 30 UVA Supplement Bar.
🌡️
Passive Cooled Design
Fanless and silent operation with superior heat dissipation for enhanced reliability.
🎛️
Fully Dimmable
Includes a dimmable power supply, which can be integrated with the HLG Growflux Access Point Controller for remote intensity management.
🛡️
5-Year Warranty
Backed by Horticulture Lighting Group for total peace of mind and long-term performance.
Spectrum Analysis
HLG 750 Diablo LED Light Specifications
| Specification | Value |
|---|---|
| Power | 715W |
| AC Voltage Range | 120-277 VAC 50-60Hz |
| LEDs | Full Spectrum White & Far-Red |
| Flowering Footprint | 5' x 5' @ 15" - 24" |
| Veg Footprint | 6' x 6' @ 36" |
| System PPF Efficacy | 2.88 µmol/joule |
| Total Output (PPF) | 2056 PPF |
| Dimensions | 37.5" x 27.13" x 3.75" |
| Weight | 20.25 lbs |
| Certifications | UL 8800, CSA |
Support & Manuals
Warranty
HLG offers a 5-year warranty. This warranty does not cover damage due to user error or operator abuse.
FAQs
What is the ideal hanging height for the HLG 750 Diablo?
For vegetative growth, a height of 36 inches is recommended to cover a 6' x 6' area. For flowering, lower the light to 15-24 inches above the canopy to saturate a 5' x 5' footprint with intense light.
Is this light too powerful for a 4'x4' grow tent?
While it's optimized for a 5'x5' area, you can effectively use it in a 4'x4' tent by utilizing the included dimmable driver. For specialized vegetative setups in smaller tents, you might also consider the HLG 250 VEG Pro to maintain precise control over light levels.
What makes the Diablo Quantum Boards® superior?
These boards are an innovation from Horticulture Lighting Group that focuses on spreading light more evenly across the entire footprint. This eliminates hotspots common in other fixtures and ensures that plants on the edge of the canopy receive as much light energy as those directly in the center. You can learn more about their technology in our article about HLG Quantum Board grow lights.
What is the difference between the 750 Diablo and the 750 Diablo ES?
Both are high-performance lights. The standard 750 Diablo is optimized for maximum broad-spectrum output, while the HLG 750 Diablo ES features an enhanced spectrum designed for specific botanical responses and increased secondary metabolite production.
Is assembly required?
The HLG 750 Diablo comes fully assembled and ready to hang right out of the box. Simply attach the included hanging hardware, connect the power supply, and you're ready to start growing.
Happy To Help
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
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