The EYE SUPER BLUE lamp features the extraordinary power of Super HPS and the balanced spectrum of Hortilux Blue in one bulb! The benefits of Metal Halide and High Pressure Sodium together: vigorous growth, accelerated development, and hearty flowering! The lamp?s unmatched energy spectrum provides the optimum light for plant growth through the entire growth cycle. Exclusive Iwasaki chemistry and global lighting technology combines to deliver 110,000 initial lumens. The HORTILUX Super Blue lamp is in an E25 jacket, which will conveniently fit in all 1000-Watt HPS fixtures. This lamp operates on standard ANSI S52 ballast, for use on 1000-Watt High Pressure Sodium systems only. The HORTILUX? Super Blue lamp is environmentally friendly in that it passes EPA, TCLP test criteria as nonhazardous waste. The HORTILUX Super Blue lamps are completely lead free and contain less mercury than standard HPS lamps. Initial lumen output of 111,000 lumens with a bulb life of 10,000 hours. Burns in either horizontal or vertical positions.