Cultilite’s QUASAR 400W is a four‑bar LED fixture built for indoor horticulture. It runs at 2.9 µmol/J with a PPF around 1160 µmol/s and a full‑spectrum mix of 4000 K white and 660 nm deep red. The array uses Sanan diodes (1152 × 2835 at 4000 K plus 56 × 3030 at 660 nm) behind a 120° beam angle. An integrated, passively cooled driver supports 0–10 V dimming and daisy‑chain control for up to 50 fixtures. The IP65‑rated chassis measures 1120 × 468 × 39 mm and weighs about 7.8 kg. Recommended coverage spans roughly 100 × 80 to 120 × 120 cm. QUASAR 400W suits tents, greenhouses, and multi‑light rooms needing uniformity, efficiency, and simple centralized control.