The efficient 150-watt OptiLUME® High Pressure Sodium lamp emulates natural sunlight and promotes bud set, flower formation, and fruit and vegetable production as it distributes light energy concentrated in the red-orange portion of the spectrum. Universal design allows horizontal and base-up operation while the 20,000-hour life rating and one-year warranty ensure dependable performance. This high-output OptiLUME lamp emits 16,000 initial lumens and works with most 150-watt high pressure sodium HID systems. This lamp is compatible with magnetic and electronic ballasts.