HM Parius 300 is a 300 W full-spectrum LED grow light from Harvest Master. The fixture uses six passively cooled modules built with Edison diodes and Mean Well drivers, arranged in a winged, parallel layout to improve airflow and reduce heat. It measures 65×65×6 cm and weighs 11.5 kg. Output is specified at 625 μmol/s PPF and around 800 μmol/m²/s at 50 cm, with effective coverage of roughly 100×100 cm. Spectrum includes a pronounced 660 nm red component to support flowering, while the passive, fanless design keeps operation silent. Rated service life is 75,000 hours. The unit runs on 220–240 V, 50–60 Hz and is presented for seed‑to‑harvest use without spectrum switching.
