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Sunmaster’s COOL grow lamps were developed to drive strong vegetative growth. For indoor growing operations requiring 100% artificial lighting, Sunmaster COOL lamps lead the industry with regard to total µmol output in specific spectral ranges to promote strong vegetative growth.

Benefits:

  • Maximizes vegetative growth
  • Maintains contact plant by suppressing extension growth
  • Drives higher chlorophyll production for greener, healthier plants
  • Promotes large leaf area, and thicker primary stems
  • Long life
  • Ideal companion to ‘SUPER’ and ‘FINISH’ lamps

Features:

  • Balanced spectral output, heavily weighted with blue/violet components
  • Proprietary Venture Lighting / Sunmaster chemistry
  • E-ballast compatible

Cool 1000W
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Latest Reviews Show All Reviews ()

AJR77Newbie
4 years ago
JayannNewbie
I was a bit disappointed with the performance on this first grow with HPS. I would have expected to double my weight in harvest going from T5's to HPS. The return was about equivalent if not less than my last T5 grow. I do not know if I perhaps exceeded my footprint size or my own doing caused this. I think I can only make better judgments on this from the experience I will get with future HPS grows.
4 years ago
JayannNewbie
I was a bit disappointed with the performance on this first grow with HPS. I would have expected to double my weight in harvest going from T5's to HPS. The return was about equivalent if not less than my last T5 grow. I do not know if I perhaps exceeded my footprint size or my own doing caused this. I think I can only make better judgments on this from the experience I will get with future HPS grows.
4 years ago
JayannNewbie
I was a bit disappointed with the performance on this first grow with HPS. I would have expected to double my weight in harvest going from T5's to HPS. The return was about equivalent if not less than my last T5 grow. I do not know if I perhaps exceeded my footprint size or my own doing caused this. I think I can only make better judgments on this from the experience I will get with future HPS grows.
4 years ago
JayannNewbie
I was a bit disappointed with the performance on this first grow with HPS. I would have expected to double my weight in harvest going from T5's to HPS. The return was about equivalent if not less than my last T5 grow. I do not know if I perhaps exceeded my footprint size or my own doing caused this. I think I can only make better judgments on this from the experience I will get with future HPS grows.
4 years ago
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