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White HLG Tomahawk 650 LED grow light fixture with six angled panels, suspended by wires.
White quantum board LED grow lights arranged vertically with mounting hardware.
Slim, silver LED grow light bar with multiple clear suction cups on the bottom for attachment.
White LED grow light with two bars on a white background.
HLG Tomahawk 650 full-spectrum LED grow light with 5 horizontal bars mounted on a white vertical frame.
Full-spectrum LED grow light graph showing peaks in blue and red wavelengths, and a broad green-yellow range.
White HLG Tomahawk 650 LED grow light fixture with six angled panels, suspended by wires.
White quantum board LED grow lights arranged vertically with mounting hardware.
Slim, silver LED grow light bar with multiple clear suction cups on the bottom for attachment.
White LED grow light with two bars on a white background.
HLG Tomahawk 650 full-spectrum LED grow light with 5 horizontal bars mounted on a white vertical frame.
Full-spectrum LED grow light graph showing peaks in blue and red wavelengths, and a broad green-yellow range.
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HLG Tomahawk 650 Full Spectrum LED Grow Light

Official Horticulture Lighting Group Dealer Model: HLG650

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • Growers managing vertical racks or low ceiling spaces who need to maintain intensity without height clearance.
  • Operators dealing with light intensity drops at the canopy edge in standard 5x5 square foot grow areas.

What We Found

  • The remote driver mounting option keeps substantial heat out of the canopy zone when ceilings are tight.
  • The asymmetric reflectors create a more consistent footprint than standard flat LED bars we have tested.

What Users Say

  • Users who transitioned from traditional lighting report fewer light stress symptoms at the canopy periphery.
  • Growers moving to a vertical setup say they stopped losing harvest quality to heat accumulation at the top.

HLG Tomahawk 650 Full Spectrum LED Grow Light

Struggling to achieve powerful, uniform light coverage in a vertical farm or low-ceiling grow space? The HLG Tomahawk 650 by Horticulture Lighting Group is engineered to solve that exact problem, delivering exceptional intensity and efficiency where other LED grow lights can't.

Designed specifically for 5x5 foot grow spaces, the Tomahawk 650 features five advanced LED bars with asymmetric reflectors. This innovative design ensures an incredibly even light spread across your entire canopy, even when mounted just 8-24 inches away. With a staggering total output of 1859 PPF and a high efficacy of 2.81 µmol/J, it provides the power your plants need for vigorous growth while consuming only 650 watts.

This fixture's full-spectrum output, combining white and deep red LEDs, makes it a versatile single-light solution for the entire grow cycle, from vegetative growth through to a heavy harvest. Its open design allows for superior passive cooling, eliminating the need for fans and reducing noise. For growers needing slightly more power, the HLG Tomahawk 720 offers a similar design with increased output.

Features

⚡️
Peak Efficiency

Delivers a massive 1859 PPF with an efficacy of 2.81 µmol/J while only drawing 650 watts.

🌱
Full Spectrum Power

Optimized spectrum with white and deep red LEDs supports plants from the vegetative stage to flowering.

✨
Asymmetric Reflectors

Uniquely designed to improve photon delivery and ensure a uniform footprint, maximizing yields.

❄️
Passive Cooling Design

The open-bar architecture provides excellent heat dissipation without the need for noisy fans.

📏
Vertical Farming Ready

A slim profile and close-to-canopy mounting height make it perfect for vertical racks and low ceilings.

🔧
Removable Driver

Allows for remote mounting of the driver to reduce heat in the grow space and lower the fixture's profile.

Specifications

Specification Value
Power 0-650 Watts
Voltage Range 120-277 VAC 50-60Hz
Flowering Footprint 5' x 5'
Recommended Mounting Height 8" - 24"
System PPF Efficacy 2.8 μmol/J
Total Output 1859 PPF
Dimensions 40.75" x 40" x 2.5"
Product Weight 20 lbs
Certifications UL 8800, CSA, DLC pending (contact HLG)
Warranty 5 Years

Warranty

Horticulture Lighting Group provides a comprehensive 5-year warranty on the Tomahawk 650, covering any manufacturing defects. Please note, this warranty does not cover damage from user error or improper use.

FAQs

What is the ideal hanging height for the Tomahawk 650?+

For maximum efficiency and coverage, the recommended mounting height is between 8 to 24 inches above the plant canopy.

Can this light be used for both vegetative and flowering stages?+

Yes, absolutely. The HLG Tomahawk 650 features a full-spectrum light output with both white and deep red LEDs, making it an ideal all-in-one solution for the entire growth cycle.

How does the Tomahawk 650 compare to the HLG Tomahawk 720?+

Both lights share a similar design ideal for low ceilings. The primary difference is power; the HLG Tomahawk 720 offers a higher wattage and PPF output, making it suitable for growers who want to maximize intensity in the same 5x5 ft space.

Is this light suitable for a 4x4 tent?+

While it's optimized for a 5x5 ft area, the Tomahawk 650 would provide exceptionally high, professional-level intensity in a 4x4 tent. For growers specifically targeting a 4x4 space, the HLG BlackBird is another excellent option to consider.

What makes the asymmetric reflectors special?+

Unlike standard reflectors, the asymmetric design is engineered to direct light more effectively across the entire 5x5 footprint. This reduces hot spots directly under the fixture and improves light levels at the corners and edges of your canopy.

Where can I learn more about setting up HLG lights?+

For more detailed information on getting the best performance from your fixture, we recommend reading our guide on how HLG sets the bar for quantum board grow lights, which covers many core principles applicable to their entire lineup.

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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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