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.
  3.  
    ECP

    ECP 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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