Pro-emit’s DIY-M-KIT SMD 400W is a modular, passively cooled LED grow-light kit designed for square canopies up to 120 x 120 cm. The package uses eight Samsung/Osram EVO V2 SMD boards and two Mean Well HLG-240H drivers (A or B variants) with stepless dimming: 50–100% on the A driver or 10–100% via external control on the B. Output is specified at 1240 µmol/s with a system efficiency of 3.1 µmol/J at 400 W input. Buyers can choose Full Cycle, Veg or Flower board options; all use Samsung LM301H EVO whites with optional Osram 660 nm and 730 nm emitters depending on board. The assembled fixture measures 90 x 64 x 8.15 cm, weighs 20.8 kg, and is rated for 50,000 hours of service.
