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Lighting and Ventilation

Grow room lighting and ventilation information and discussions.

1,618 topics in this forum

  1. Mix 3K & 4K QB boards? 1 2 3

    • 20 replies
    • 1.7k views
    RC.
    • 3 replies
    • 462 views
    • 4 replies
    • 603 views
  2. led advice

    • 7 replies
    • 592 views
    • 51 replies
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    • 3 replies
    • 512 views
    • 6 replies
    • 947 views
  3. 3 Phase power 1 2

    • 10 replies
    • 1.1k views
      • 420 Crew
    • 8 replies
    • 682 views
    • 29 replies
    • 1.9k views
    • 22 replies
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    Indycar
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    • 49 replies
    • 2.8k views
    • 5 replies
    • 649 views
    bakedcake
    • Upvote
  4. light for newbie

    • 0 replies
    • 337 views
    komatsu52
    • 7 replies
    • 653 views
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