400W Metal Halide MH Grow Light Bulb 4-Pack

  • 400W VIVOSUN MH bulb compatible with electronic and magnetic ballasts, 36000 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
  • UPC: 615435163673


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