The Meijiu MJ-1978 is an 8‑bar folding LED grow fixture corresponding to the brand’s 1978‑700W model. It draws 700 W and is rated at 1820 µmol/s PPF with efficacy up to 2.6 µmol/J. The recommended flowering footprint is 1.5 x 1.5 m. The unit uses top‑bin Samsung and Epistar LEDs driven by Josen/Meanwell drivers, is passively cooled, dimmable via 0–10 V, and carries an IP65 ingress rating. Physical specifications published by Meijiu list a size of 1060 x 1060 x 32 mm and a weight of 9.5 kg. The bar set integrates 660 nm deep‑red, 730 nm far‑red, and 395 nm UVA diodes alongside white channels, and the fixture lifetime is stated at 50,000 hours.
