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Lighting and Ventilation

Grow room lighting and ventilation information and discussions.

1,619 topics in this forum

      • 420 Crew
    • 66 replies
    • 3.5k views
    kloud9
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  1. Mix 3K & 4K QB boards? 1 2 3

    • 20 replies
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    RC.
    • 3 replies
    • 474 views
    • 4 replies
    • 618 views
  2. led advice

    • 7 replies
    • 599 views
    • 51 replies
    • 4.5k views
    • 3 replies
    • 524 views
    • 6 replies
    • 964 views
  3. 3 Phase power 1 2

    • 10 replies
    • 1.1k views
      • 420 Crew
    • 8 replies
    • 738 views
    • 29 replies
    • 2k views
    • 22 replies
    • 2.2k views
    Indycar
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    • 49 replies
    • 2.8k views
    • 5 replies
    • 661 views
    bakedcake
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  4. light for newbie

    • 0 replies
    • 365 views
    komatsu52
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