Boost lower bud sites with high-efficiency side or under canopy lighting that’s waterproof, compact, and easy to install.

This side and under canopy LED light is built for serious growers who demand more out of every square foot. With 385 PPF total output, a high-efficiency 3.21 µmol/J rating, and a slim 48" profile, the Tarantula Volcano slides under your canopy or mounts vertically to hit lower bud sites with intense, usable light. It’s housed in durable metal for superior heat dissipation, fully waterproof (IP66), and wired with plug-and-play connectors, making installation fast and painless. Works with 0–10V and PWM dimmers for full control across growth stages.

Is the Tarantula Volcano Energy-Efficient?

Absolutely. At 3.21 µmol/J, it more than doubles the efficiency of standard HPS (1.7 µmol/J) and beats out many premium HPS fixtures (1.8–2.1 µmol/J). That means more usable light per watt, less wasted energy, and better ROI in both small- and large-scale grow setups.

Interconnect Cables and Power Cords

Whether you're testing under canopy for your grow operation or just need 1 unit for your home grow, here's all you will need:

Single-Light Setup

• 1 x Tarantula Volcano Light
• 1 x 10ft Power Cord/50ft RJ14 Cord - Sold separately.

Multi-Light Setup (2-9 on 120V; 2-18 on 240V; 2-21 on 277V)

• 1 x Power Cord - Only the first light in the chain needs power
• 1 x Interconnect Cable is only needed where you are running parallel lights on a single power cord and you need to daisy chain to the other side of your plants.
  • Tip: A single 4ft interconnect is sufficient at the end of a run to cross to the other side of a table; an 8ft cable is ideal for jumping an aisle. Each light connects via onboard cables.

Under Canopy Placement Options

The Under Mount Kit can support one pair of Volcano lights. (It is also possible to have 3 lights on one under-mount kit.)

Side Placement Option

The Side Mount Kit (10ft) can vertically support 1–2 lights on trellis poles or tent frames. Great for increasing yield with directional lighting.

Features

What's Included?

• 1 x Grand Master LEDs Tarantula Volcano Light

See note on Interconnect Cables and Power Cords below.

Download Resources

• Product Manual