Buy GL HPS 400W Light Bulbs Online - High Pressure Sodium Bulbs - The Hippie House

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GL HPS 400W Lamp Bulb - 2100K

GrowLush HPS 400W Tubular Lamp Bulb - 2100K

This latest 400W High Pressure Sodium (HPS) Grow Light benefits: accelerate development and hearty flowering! HPS light is for better flowering, which is best for your plants chlorophyll production. The high output version lamp with 20% extra output. The increased Blue increases fruit weight and total number of branches, also maximum your yield. One lamp can be used for whole growling cycle, without traditionally using MH lamp for growing stage and changing to HPS lamp for flowering stage. It is especially productive for professional growers.


  • Power: 400 watts (High efficiency)
  • Expected Life Span: 29,000 hours
  • Lumen: 65,000 lumens
  • Contains extra 20% more blue spectrum compare to standard HPS lamp
  • Maintain rich red spectrum for super high lumen output
  • Strong power to penetrate fog
  • High output, high luminescence efficiency
  • Fit for all standard 400 watts HPS grow light systems
  • Better results by using Grow Lush high output 400w magnetic ballast