About this item

• 600W VIVOSUN MH bulb compatible with electronic and magnetic ballasts, 60000 Lumens, E39 Base
• Optimized blue & violet spectrum and high PAR (Photosynthetic Active Radiation) to stimulate flower growth and enhance fruiting
• Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5,000 hours
• Startup Time: allow 2-3 mins for full bright. After power off, do please wait at least 5 mins before striking again
• Lifetime: 24,000 hours