White rectangular HLG Scorpion Ultima Diablo LED grow light with multiple bright LED panels, suspended.

HLG Scorpion Ultima Diablo LED grow light, a large white multi-bar fixture with four rows of Quantum Boards, densely packed with warm white LEDs.

Horticulture Lighting Group HLG Scorpion Diablo LED grow light spectrum graph featuring strong blue and red peaks.

White HLG Scorpion Ultima Diablo LED grow light, angled view showing multiple panels of bright yellow-white LEDs.

HLG Scorpion Ultima Diablo Full Spectrum LED Grow Light

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Pay as little as
$131175/mo

for a term that suits you, up to 36 months.

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MODEL: HLG-Scorpion-Ultima-Diablo

Order today, ships between January 21 - February 11, 2026

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Full Spectrum

Type

1500W

Power

5' x 5'

Coverage

5 Years

Warranty

HLG Scorpion Ultima Diablo Full Spectrum LED Grow Light

Struggling with uneven canopy coverage and high energy bills in your grow space? The HLG Scorpion Ultima Diablo is engineered for serious growers who demand maximum yields, precise control, and uncompromising efficiency. This powerhouse fixture eliminates hotspots and ensures deep light penetration, transforming your garden into a high-performance cultivation environment.

Powered by eight advanced Diablo Quantum Boards®, this light delivers an astounding 4178 PPF with an industry-leading efficacy of 2.86 µmol/J. The result is an intense, uniform light spread that fuels vigorous growth across a 4'x4' flowering footprint. Its innovative design, featuring integrated reflectors, guarantees that every photon is directed down to your plants. This fixture is a flagship model from Horticulture Lighting Group, a brand known for pushing the boundaries of horticultural lighting.

Take complete command of your grow cycle with Dual-Zone Dimming, allowing you to fine-tune the intensity for vegetative and flowering stages independently. This not only optimizes plant development but also significantly reduces energy consumption. For growers looking to cover different-sized areas, HLG also offers powerful alternatives like the HLG 750 Diablo. The reliable, passive-cooled design ensures silent operation and longevity, making it a premium investment that pays off with every harvest.

Features

⚡️

Extreme Power & Efficiency

Delivers an immense 4178 PPF output at a class-leading 2.86 µmol/J efficacy.

🎛️

Dual-Zone Dimming

Provides independent control over light intensity for vegetative and flowering stages.

💡

Enhanced Light Delivery

Integrated reflectors improve photon delivery for deep, even canopy penetration.

🌿

Plant-Centric Spectrum

Optimized full spectrum white light with deep red boosts photosynthesis and resin production.

Spectrum Analysis

Specifications

Specification	Value
Power	0-1500 Watts
Voltage Range	120-277 VAC, 50-60Hz
Total Output (PPF)	4178 µmol/s
Efficacy (PPF/W)	2.86 µmol/J
Spectrum	Plant-centric White with Deep Red
Flowering Footprint	4' x 4'
Vegetative Footprint	5' x 5'
Flowering Canopy Height	30" - 36"
Vegetative Canopy Height	36" - 48"
Dimensions	39" x 36" x 3.75"
Weight	34.15 lbs
Certifications	UL 8800, UL 1598, CSA C22.2 #250

Warranty

This Horticulture Lighting Group fixture is backed by a comprehensive 5-year manufacturer's warranty, ensuring your investment is protected. Please note the warranty does not cover damage from user error or abuse.

FAQs

What is the ideal hanging height for this light?+

For the flowering stage, hang the light 30" to 36" above the canopy at 100% intensity. For the vegetative stage, the ideal height is 36" to 48". Always monitor your plants for signs of light stress and adjust as needed.

Is this light suitable for a 4'x4' or 5'x5' grow tent?+

Absolutely. The Scorpion Ultima Diablo is one of the most powerful LED grow lights for a 4'x4' flowering footprint and can cover a 5'x5' area for vegetative growth, making it an ideal choice for standard-sized tents.

How is this different from the HLG Scorpion Diablo X model?+

The Scorpion Ultima Diablo is the most powerful model in the series, designed for maximum output with 1500 watts and 4178 PPF. The HLG Scorpion Diablo X is a highly efficient 1000-watt alternative that offers excellent performance for growers who don't require the Ultima's extreme intensity.

Can I control the light intensity?+

Yes, one of its key features is Dual-Zone Dimming. This allows you to precisely control the light output for different growth phases, helping you save energy during early growth and maximize power during flowering.

What makes HLG lights a good investment?+

Horticulture Lighting Group is renowned for its high-quality components, cutting-edge designs, and industry-leading efficiency. Their lights use top-bin diodes and reliable drivers to deliver consistent, powerful results. You can learn more about how HLG sets the standard for Quantum Board grow lights in our detailed article.

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

Most orders are processed within 24-48 hours after being placed.

Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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HLG Scorpion Ultima Diablo Full Spectrum LED Grow Light

About HLG Scorpion Ultima Diablo Full Spectrum LED Grow Light

HLG Scorpion Ultima Diablo Full Spectrum LED Grow Light

Features

Extreme Power & Efficiency

Dual-Zone Dimming

Enhanced Light Delivery

Plant-Centric Spectrum

Spectrum Analysis

Specifications

Warranty

FAQs

Shipping & Returns

Customer Reviews

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