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Underside view of Tarantula Explorer Ultra grow light showing LEDESTAR diodes and dual channel design.

Grand Master LEDs Tarantula Explorer Ultra

by Grand Master LEDs
$949.00 - $949.00
$949.00
$1,149.00
$1,149.00 - $1,149.00
$1,149.00

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Full Manufacturer’s Warranty

You buy it, we back it! Your purchase is fully covered with a manufacturer’s warranty. More details here.

Maximize crop quality with precision spectrum control powerful output and commercial grade performance designed for serious growers.

A high-output LED grow light with customizable spectrum control, advanced optics, and commercial-grade performance, engineered for maximum crop quality and production efficiency.

The Grand Master Tarantula Explorer Ultra is designed for growers who want complete spectrum control without sacrificing output. Featuring a powerful 2-channel system capable of producing up to 12 unique spectrum combinations, this LED grow light allows cultivators to fine-tune light recipes for different cultivars, growth stages, and production goals. Whether you're running commercial flower rooms, vertical racks, low ceiling facilities, or premium grow tents, the Explorer Ultra delivers exceptional flexibility and performance.

At 1,440W with up to 3,744 PPF, the Explorer Ultra is one of the highest output fixtures in its class. The upgraded spectrum delivers enhanced 640nm deep red output for flowering performance and a triple-blue-peak design featuring 437nm and 485nm wavelengths that increase blue content to 50%. Combined with optical lenses for superior uniformity and easier cleaning, this fixture gives professional growers the tools to maximize crop quality while maintaining operational efficiency.

Boost Efficiency by Mounting the Driver Outside the Tent

Improve cooling and reduce clutter by placing the driver remotely using the Grand Master LEDs Driver Box Extension. Use one Driver Box Extension (two for dual-driver units) to streamline your setup.

Features

  • 2-Channels and up to 12 Spectrums
  • Designed for Commercial production, vertical racks, low ceilings, and grow tents
  • LEDESTAR Diodes
  • Features 730nm
  • IP66 Waterproof
  • Folding Design for fast and easy installation
  • Manual Knob Dimming
  • Recommended to be controlled with the Grand Master Controller
  • May be compatible with other controllers via the RJ14 port (refer to the respective manufacturer’s manual for compatibility details)
  • 5 Year Warranty

What's Included?

  • Grand Master LEDs Tarantula Explorer Ultra Grow Light
  • Accessories

Download Resources

Specifications

Max Wattage: 1440 watts

Voltage Range: 120 to 277 volt, 480V available

Amperage: 12A at 120V, 6A at 240V, 5.19A at 277V

Flowering Footprint: 5 ft x 5 ft

System PPF Efficacy: 2.60 µmol per joule with both channels at 100 percent

System PPF Efficacy: 2.61 µmol per joule with cool white channel at 100 percent

System PPF Efficacy: 2.59 µmol per joule with warm white channel at 100 percent

Total Light Output: 3,744 PPF with both channels at 100 percent

Total Light Output: 1,879 PPF with cool white channel at 100 percent

Total Light Output: 1,865 PPF with warm white channel at 100 percent

Fixture Dimensions: 45.67 in x 45.67 in

Weight: 56.31 lb

Recommended Mounting Height: 12 to 18 inches above canopy

Spectrum

PPFD

Grow Light Central expert advice for indoor growing equipment

Who should use this LED grow light?

  • Commercial growers wanting advanced spectrum tuning without moving to complex four channel systems.
  • Facilities focused on flower quality and canopy uniformity at scale.
  • Vertical rack operators need high output in low-ceiling environments.
  • Growers who value easy cleaning and crop turnaround with optical lens protection.
  • Operators seeking controller compatibility and flexible spectrum management.

Best applications

  • High-intensity flowering rooms using triple red peak spectrum for flower development.
  • Veg and transition stages benefit from enhanced blue spectrum control.
  • Commercial production spaces requiring 3744 PPF output across a 5x5 canopy.
  • Vertical farms and grow tents needing folding low profile fixtures.
  • Facilities optimizing crops with up to 12 spectrum configurations and 730nm far red support.

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 grow equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best grow facilities across the country.

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.