QB288 480W LM301H Quantum Board

Meijiu’s QB288 480W LM301H Quantum Board is a full‑spectrum LED grow light built around four QB288 boards. It combines Samsung LM301H white diodes with 660 nm deep‑red emitters and is driven by a Mean Well HLG‑480H‑C2800B. The fixture is dimmable from about 60 to 480 watts, designed to replace 1000 W HID while delivering uniform PPFD across a 1.2 x 1.2 m canopy. Rated system efficacy is 3.0 µmol/J, with recommended flowering coverage of 4' x 4' (up to 5' x 5' for veg). Input voltage spans 90–277 VAC. The panel measures 25.98 x 19.29 inches and uses passive cooling. Typical kits include hanging hardware and a dimmer. Optional variants add 730 nm IR and 395 nm UV diodes.