HortiBloom LED’s SOLO 400w is a COB‑based grow light combining two 50 W Cree CXA2540 (or optional CXB3070) COBs with 126 Bridgelux 5 W diodes. Actual power draw is about 360 W (Veg 110 W, Bloom 260 W, Full 360 W). Core coverage is 4'x3' (120x90 cm), with total reach up to 5'x4' (150x120 cm). Features include Veg/Bloom switching, 12‑band full‑spectrum output, optional 90° or 160° lenses, UL drivers, quiet active cooling, and daisy‑chain linking for up to four fixtures. The fixture measures 22 x 14.2 x 3.5 in (56 x 36 x 8.5 cm) and weighs roughly 9 kg. First launched in 2015, the SOLO 400w was a HortiBloom bestseller between 2015 and 2018. Input voltage range is AC 100–270 V.
