how many cfls per plant/stages

Discussion in 'Marijuana Growing Techniques' started by petedav, Jun 6, 2009.

  1. petedav

    petedav Member

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    as above i hav 3 seedlings 8 days old now how many cfls shud i be useing.i useing 3 at tho mo 1 each advice wud be great? thanks people
     
  2. Rocklobster

    Rocklobster Senior Member

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    60-80 watts of cfl per plant of the 6400k or 4000k type for vegging although i'd still have 1 2400k type per plant just to provide a fuller spectrum. For blooming you want mostly 2400k types but remember they wont last much more then 6 month before ya will need to replace them.
     
  3. alti1175

    alti1175 Member

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    you could probably get by with 2 23watt bulbs for vedge and maby 2-3 40watt bulbs for flowering a smaller plant (under 2 ft). remember this is the bear minimum, more light equals healthier plants which means more pay off for your work. i also found its better to get the slightly more expensive brand for 2 or 3$ more, they put out more lumens for sure.
     
  4. klondike_bar

    klondike_bar Senior Member

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    from sprout to about 4 inches: 1 bulb per 2 palnts, minimum 2 bulbs though.
    4-12 inches: 1 bulb per plant
    12-17 inches: 3 bulbs for every 2 plants
    18 inches to finish: up to 3 bulbs per plant

    this is assuming that you use 20-26w CFL bulbs.
     
  5. petedav

    petedav Member

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    thanks klondike for that.
    im currently useing 6400k daylight white 25w spiral cfls 1510 lumen will thease b any good?
    any advice is welcome.
     

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