hortiONE 420 is a compact 150 W LED grow lamp built around a 45° angled reflector to increase homogeneity and intensity in small spaces. The hybrid array combines 408 Seoul 3030C mid‑power LEDs at 4000 K with 12 Osram OSLON 660 nm deep‑red diodes (420 total). Rated output is 408 µmol/s at 2.9 µmol/J, suitable for full‑cycle use. Recommended coverage is 60x60 cm up to 80x80 cm. The panel’s CCT is about 3800 K with CRI 90, and lifetime is 50,000 h+. Physical size is 518x165 mm, weight about 2.4 kg. It ships with driver and cables and supports external controllers via 12 V auxiliary power and 0–10 V dimming.
