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HLG 750 Diablo X Full Spectrum LED Grow Light

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MODEL: HLG750DX
Order today, ships between February 17 - March 3, 2026
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HLG 750 Diablo X Full Spectrum LED Grow Light

Tired of inconsistent yields and uneven growth holding back your indoor garden? The HLG 750 Diablo X is engineered to solve these problems, delivering professional-grade lighting power and precision control. This full-spectrum fixture provides an incredible 715 watts of adjustable power, making it a perfect replacement for a 1000W HPS light while using significantly less energy. Its advanced Diablo Quantum Board® design ensures uniform light distribution, eliminating hot spots and promoting consistent canopy development. For growers seeking similar high-end performance in different configurations, the HLG Scorpion Diablo X offers a larger, bar-style format.

Harnessing a custom spectrum with a 48:32:20 Red-Green-Blue ratio, the Diablo X allows you to manage light output precisely through every growth stage, from vegetative to flowering. With a staggering efficacy of 2.95 µmol/J, this fixture maximizes photon delivery for robust growth and higher yields. The entire system is built for performance and reliability, featuring passive cooling and integrated reflectors. It's one of the most powerful options in the Horticulture Lighting Group lineup, designed for serious cultivators who demand the best full spectrum LED grow lights.

Features

💡
High-Efficacy Output

Achieves an impressive 2.95 µmol/J for maximum photon delivery and energy efficiency.

🌿
Uniform Light Spread

Diablo Quantum Board® design ensures even coverage, eliminating hot spots for consistent growth.

🎛️
Fully Dimmable

Adjustable power from 0-715W to match every stage of your plant's life cycle.

🛡️
Reliable & Safe

Passively cooled for silent operation and UL/CSA certified for guaranteed safety.

HLG 750 Diablo X Spectrum Analysis

Horticulture Lighting Group HLG 750 Diablo X spectrum analysis chart

HLG 750 Diablo X Specifications

Specification Value
Power 0-715 Watts
Voltage Range 120-277 VAC 50-60Hz
Flowering Footprint 5' x 5'
Vegetative Footprint 6' x 6'
Recommended Mounting Height 15" - 36"
System PPF Efficacy 2.95 µmol/J
Total PPF Output 2105 PPF
Dimensions 37.5" x 27.125" x 3.75"
Product Weight 20.25 lbs
Certifications UL 8800, CSA

Support & Manuals

Warranty

Horticulture Lighting Group offers a comprehensive 5-year manufacturer's warranty, ensuring your investment is protected. This warranty does not cover damage from user error or operator abuse.

FAQs

What is the ideal coverage area for the HLG 750 Diablo X?+

This light is designed to provide exceptional coverage for a 5' x 5' area during the flowering stage and a larger 6' x 6' area for vegetative growth. It delivers intense, uniform light across these entire footprints.

What is the recommended hanging height?+

For optimal performance, hang the light 15-24 inches above the canopy during flowering and around 36 inches during the vegetative stage. Always monitor your plants for signs of light stress and adjust as needed.

Can I control this light with an external controller?+

Yes, the HLG 750 Diablo X includes a standard dimmable power supply. For more advanced control, it is compatible with the optional HLG GrowFlux Access Point, allowing for precise scheduling and dimming.

How does this model compare to the HLG 350 Diablo?+

The HLG 750 Diablo X is a much more powerful light, designed for larger 5'x5' spaces with its 715W output. The HLG 350 Diablo is its smaller counterpart, perfect for spaces around 3'x5' or 4'x4' with a 330W output, while still featuring the same high-efficiency Diablo technology.

What makes Quantum Board® lights special?+

Quantum Boards® are renowned for their high efficiency and superior light spread. By distributing many low-power LEDs over a large area, they run cooler and deliver more uniform light to the plant canopy, which is key to consistent growth. You can learn more about how HLG sets the bar for quantum board grow lights in our detailed article.

Is this light difficult to assemble?+

No, the HLG 750 Diablo X is designed for easy setup. It comes with all necessary hanging hardware and clear instructions. You can have it up and running in your grow space in just a few minutes.