|At nearly 90% efficiency, the GLS is delivering more usable light energy than any other reflector in the industry, period! This stellar performance allows greenhouse growers to significantly increase yields. The GLS is ideal for low clearance situations, accepts 400, 430 and 600 watt HPS, employs MIRO5 aluminum construction—the highest reflectivity available—delivers broad, even coverage from a minimal fixture footprint. In plain English, this is the baddest of the bad boys. Even growth with no hotspots and a ton of lumen coverage.