What's The Minimum Lumens For A Grow?

Discussion in 'CFL / Fluorescent Lighting' started by GMNRecordsCT3, Feb 4, 2008.

  1.  
    ryangeneral

    ryangeneral Member

  2.  
    ganjaluvr

    ganjaluvr Well-Known Member

    I'm running 32k lumens currently. Which is plenty for me..

    peace.
     
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    ECP

    ECP Well-Known Member

    Well if you prefer to measure the plants photosynthetic activity, be our guest. But unless your a botanist, lumens are an acceptable way to measure how much light is getting to a plant.
    And to be productive 10,000lm per square foot is ideal, a dark closet with the door cracked open will grow a plant. I suggest 23 or 42 watt cfls within 3 inches of foliage, the amount of lights depends on the size of your plant.
     
  4.  
    shrek8103

    shrek8103 Member

    I have a model 7020 75 watt 120v 60hz 17w 300mA grow light..will this be enough lumens for one plant? the light bulb is 24 inches long
     

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