Hortilux Double-Ended High Pressure Sodium (HPS) Lamp, 1000WEYE HORTILUX Double Ended (DE) High Pressure Sodium grow lamps offer a reliable light source capable of producing consistently high yields through many growth cycles. The exclusive EYE HORTILUX DE spectrum provides 1950 mol s of photosynthetic photon flux (PPF) when operated at 1000W and 2100 mol s when operated at 1150W. PAR micromles are measured between 400 and 700 nanometers. BENEFITS Produces noticeably bigger, fuller flowers and overall heavier