Meijiu’s QB 120W-288V2-LM301B is a single quantum-board grow light built on a 288‑diode V2 PCB using Samsung LM301B white LEDs, typically paired with 660 nm deep‑red. The board draws about 120 W and is also the individual module used in Meijiu’s multi‑board kits; for example, the 240 W kit comprises two 120 W boards and targets a 0.6 m × 1.2 m grow area. A single 120 W board is therefore suited to compact 60 cm × 60 cm spaces for veg or light flower work. Passive cooling via an aluminum heatsink and a Mean Well driver keep operation straightforward and efficient, and Meijiu rates comparable QB assemblies for about 50,000 operating hours. Each board carries 288 LEDs to deliver uniform, full‑spectrum coverage.
