Our premium quality Aelius 300's boast large metal heat sinks to aid in climate control as well as, a powder-coated aluminum frame for a strong and clean look. Suited to almost any growing environment, the Aelius 300 is a great choice for full-cycle growing. This fixture is suitable to cover a 4' x 4' reflective area, for non-reflective areas assume 3' x 4', or contact us for a custom lighting plan.