CFL grow plz help

Discussion in 'Growing Marijuana Indoors' started by cron-man5, Mar 20, 2009.

  1. hey i have a 5 f wide x 2 feet deep x 7 feet tall grow room. I am planing on starting 25 plants in there for about a month before i transplant 20 out side ( and keep 5 inside ). how any watts do i need to start all 25 for 1 month? do i go buy the actuall watts used or how many watts it is equivalent to. for example a 26W CFL provides wattage equal to 100W standard bulb(of canadian tire site lol).
     
  2. For that many plants, your most likely going to need a HPS. I'd say 400w at least. If you were too get that, I'm sure it would be plenty. Especially if your planning to move most of them outdoors.
     
  3. Since you're just starting these for an outside grow and fast growth isn't really necessary, CFLs will be fine. Try to keep them close to the plants. I would shoot for 25 watts per square foot, so 10 of the 26 watters you mentioned will get the job done.
     

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