Grow Light Science is a U.S. LED horticultural lighting maker based in Troy, Michigan. Founded in 2017, the company focuses on high‑output, full‑cycle fixtures engineered for commercial cannabis cultivation. Its GLS HI RED spectrum and emphasis on photosynthetic photon flux (PPF) target strong plant performance and return on investment, with most fixtures backed by a five‑year warranty. The portfolio has included the GROW 200/300 panels introduced in 2019 and the PROGROW series (e.g., PROGROW 2400/2400 HB and 4800 HB), plus a mobile rack system, a 0–10 V lighting controller, and an RJ‑12 dimmer. The brand positions around “most flux per buck” and U.S.‑based support, selling direct and through authorized distributors.
