Gardeners will love the big beautiful blooms they get when they raise their plants under a 600-watt HPS HiLUX GRO Lamp. Emitting 90,000 initial lumens with a 19,000-hour life rating, this sodium lamp operates in the horizontal or base-up position and includes a one-year manufacturer?s warranty. Lamps generate an optimized red spectrum for superior flower development in addition to an enhanced blue spectrum to give plants their green. For use with a 600-watt HPS ballast.