The Tarantula Volcano Evolution from Grand Master LEDs is a spectrum‑tunable under‑canopy LED bar that can also be used overhead. It runs three independent channels—120 W warm white, 120 W cool white (18,000 K), and 15 W far red (730 nm)—for a 255 W maximum draw. At full power, output is rated 663 µmol/s with system efficacy up to 2.6 µmol/J. The retail two‑light pack is specified to cover a 4×4 or 4×5 ft area and ships with tripods and interconnects. The IP66‑rated aluminum fixture measures 42.44 × 4.19 × 3.02 in and weighs 12.19 lb (5.53 kg). Control is via 0–10 V/PWM with RJ45 daisy‑chain. LEDs are by LEDESTAR and lifetime is listed at over 100,000 hours. Voltage range is 120–277 V.

