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  1. DIYGrow420

    Any concise posts/guides on DIY Cree COB?

    Supra you are the man. This all makes 100x more sense now. Thanks.
  2. DIYGrow420

    Any concise posts/guides on DIY Cree COB?

    Ok. So if I said that I was going to use cxb3590's in a quad array, any other factors you can choose, in a 2x2 and a 2x4 with a PPFD between 700-800. How would one do the math for that?
  3. DIYGrow420

    Any concise posts/guides on DIY Cree COB?

    Hey Supra, thanks for this. How do you calculate the area that something like this would cover?
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