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DiY LED Grow Lights with CREE CXA3070 COBs and CPU Coolers

Discussion in 'Do It Yourself' started by Gaius, Mar 1, 2014.

  1.  
    Madgrower84$

    Madgrower84$ New Member

    Hey anyone know what the thermal adhesive is used for since the cob's are taped on with kapton tape?
     
  2.  
    Forrestfirebuds

    Forrestfirebuds Member

    Heat transfer
     
  3.  
    Seshwaan

    Seshwaan Member

    Could anyone help me out gathering info on what would be needed to build my own COB grow light for a PC case? Rough dimensions are 40cm x 40cm x 18cm (HxLxW)

    Thanks in advance!
     
  4.  
    Forrestfirebuds

    Forrestfirebuds Member

    For that size you will only need 1 cob and a tiny driver. Probably only need to push it at 700 to 1050 ma
     
  5.  
    Seshwaan

    Seshwaan Member

    Really appreciate the response!

    Ahh only 1 cob? I think I may have the measurements wrong so it may be a bit bigger than that, its basically a gaming PC case so quite a bit bigger than your normal PC tower.

    If I were to go 2 COBs would that be overkill?
     
  6.  
    Forrestfirebuds

    Forrestfirebuds Member

    If you are going to use 2 cobs make sure you get a driver that is dimmable because yes it could be overkill very easily. Each cob can easily cover a 1 foot by 1 foot area. 40cm in height is only 15 inches which isnt very much room for a plant to grow. If i were you i would definitely go with a bigger space to grow in. Are you trying to grow 1 plant in there? Because that would probably be the world record for smallest weed plant lol. You will need to keep your cob at least 6 to 10 inches away from your plant depending on how many milliamps your pushing that cob. What kind of cob and driver were you looking at?
     

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