The Groplanner I Series GLI640 is a 640 W LED bar fixture for commercial and larger home grows. It uses 2,112 SMD 2835 diodes and is specified at up to 2.75 μmol/J with a stated PPF of 1,760 μmol/s. The spectrum covers 400–700 nm with 4000 K white plus targeted peaks at 450 nm (blue) and 660 nm (deep red) for full‑cycle cultivation. A large 44 x 44 in frame and removable light bars help spread PAR uniformly. Recommended coverage is up to 6 x 6 ft in veg and 5 x 5 ft in flower. The GLI640 includes onboard 0–100% dimming and supports RJ14 daisy‑chain control for multi‑fixture setups, runs passively cooled, and is rated for more than 60,000 operating hours.
