Stopping Light Emission?

Discussion in 'First Time Marijuana Growers' started by Vegi, Oct 20, 2014.

  1. #1 Vegi, Oct 20, 2014
    Does anyone have a way or idea to stop light escaping for my exhaust fans?
     
    I have carbon material but the light still escapes?
     
    Any help would be appreciated.
     
    It's two PC fans I'm using for the exhaust

     
  2. #2 MayorMcStoned, Oct 20, 2014
    Get a 90 degree PVC elbow and paint the inside black. Attach it to the exhaust on your fan.

    You gotta pic?
     
  3. #3 gmoss2, Oct 20, 2014
    Build a labyrinth box easy and cheap just a can of black spray paint and a cardboard box for a low budget


    Sent from my iPad using Grasscity Forum
     
  4. #4 GreenHackTM, Oct 20, 2014
    Last edited by a moderator: Oct 20, 2014
    Is this on your server case?
     
  5. #5 Vegi, Oct 21, 2014
    Thanks guys.

    Na, not my server case, its the internal greenhouse I have.

    I think I fixed it with a DIY 90 bend thing I did with some cardboard. Seems to have reduced it dramatically
     

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