Grow Light Science’s PROGROW 320 is a full-spectrum LED fixture intended for 2x4 ft flowering footprints and up to 3x5 ft in veg. The light draws approximately 325 W at 120 V and outputs a listed 848 μmol/s (2.61 μmol/J), using the brand’s GLS HI-RED spectrum and high-CRI LEDs. It offers onboard 0–100% dimming via 0–10 V control with dual RJ12 ports, and carries IP66 ingress protection plus ETL UL 1598 and UL 8800 certifications. The two-bar aluminum chassis measures 47.2 x 14 x 3 in and weighs about 5.35 kg, with a minimum recommended hanging distance of 6 inches above the canopy. Stated photon maintenance is Q90 > 36,000 hours. Designed for rectangular tents, it targets uniform PPFD across the full 2x4 area.
