You got it GEORGE, that's what I'm saying bud, if you're testing it, raise it as high as you want, doesn't need to be 20"..if it's further away then the light spread will be better and closer to the centre readings
Of course this brings us back to the discussion earlier on in this thread..this of course will be more expensive, as we're using more electricity, so it's about finding the balance between good light spread and the amount of watts you feel is more affordable.
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