*Reflective cover is made of strainless steel. *400w,55000lumens of perfectly balanced light spectrum

-55,000 lumens- UNIVERSAL POSITION - operates in any position- Designed Specifically for Plant Growth- Brighter than Standard HPS Lamps- Increased Violet and Blue Lighting Spectrum Engineered to Enhance Natural Plant Growth- Creates a More Correct Ballance of Red and Blue/Violet Energy for Increased Photosynthesis- For Use with S51 Type Ballasts- Mogul Based Lamp