CMH 315W Grow Light Kit

The MIXJOY CMH 315W Grow Light Kit is a ceramic metal halide HID system intended as a single-light solution for veg and bloom. The Sylstar product page lists model SPG-CMH315 with a 120–240 V electronic ballast, ETL/CE/RoHS certifications, and a high-reflectivity German aluminum hood rated at 95%. It ships with one 315 W 3100 K CMH bulb (MIXJOY) and hanging hardware; fixture CCT is specified at 3300 K. Published size is 51 × 26.5 × 29 cm, with a stated working lifetime of 12,000 hours for the system and 15,000 hours for the included lamp, and a 3‑year fixture/1‑year bulb warranty. Typical 315 W CMH coverage is about 3 × 3 ft (≈90 × 90 cm), supporting small canopies efficiently with high CRI (~90) white light.