OptiLUME MH, 400W, U Lamp ED37

The efficient 400W OptiLUME Metal Halide Lamp emulates natural sunlight and promotes bounteous vegetative growth as it distributes light energy concentrated in the blue-yellow portion of the spectrum. Universal design allows horizontal and base-up operation while the 10,000-hour life rating and one-year warranty ensure dependable performance. This high-output OptiLUME lamp emits 39,000 initial lumens and works with most 400W metal halide and two-way HID systems. Compatible with magnetic and electronic ballasts.