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Lighting and Ventilation

Grow room lighting and ventilation information and discussions.

1,618 topics in this forum

      • 420 Crew
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    Dan J
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    • 879 views
    merl1n
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    fishburgr
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    • 5 replies
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  1. acinfinity

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    • 40 replies
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  2. HLG qb alternatives

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    buzzer
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    • 1 reply
    • 550 views
    merl1n
      • 420 Crew
    • 7 replies
    • 596 views
    micmac
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    • 0 replies
    • 401 views
    SIK
  3. CFL for seedling light

    • 8 replies
    • 590 views
    orb
  4. orb
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