The Grower's Choice ROI‑E200 is a compact, powerful LED fixture engineered for both commercial cultivators and hobbyists working in confined spaces. Operating at just 200 watts from the wall, it generates an impressive 500 µmol/s total light output with outstanding efficacy of about 2.5 µmol/J, ensuring efficient, high‑intensity illumination for vigorous vegetative growth. The ROI‑E200 is tailored to grow spaces with height constraints while still covering approximately 4′×4′ during veg and 3.5′×3.5′ in bloom. Its fanless, passive‑cooling aluminum housing and IP65 rating allow quiet, maintenance‑free operation even in humid environments, backed by UL 8800, UL 1598, DLC certifications and a five‑year warranty. But if this lighting system is too much for your grow space, then take a look at the ROI-E420 system, or the smaller 10K 1000W SE for better light management.