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lower tempt.

  1. G

    cool tubes

    My grow room,very small,maybe at best 4 plants. 2' X 4'. The heat generated is outrageous. Do the cool air fed tubes diminish the amount of light or lumens? Also, how much will they they bring down the temperature? I have 600 MH and HPS Is this over kill for a room this size. What would you...
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