These lamps have been specifically engineered for horticulture applications. Ultra Sun™ lamps are high quality, feature robust construction and have excellent reliability at an economical price.
+ 36,000 initial lumens
+ 25,500 mean lumens
+ 12,000 hour life-span.
For use in both vertical and horizontal fixtures.
For use with 400W digital ballasts and 400W metal halide magnetic ballasts only.