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  1.     
    #1
    Member

    Combatting high temps in a 12 cubic feet growbox 250 watt CFL

    Hi.

    I made a growbox for my first grow, it's 2x2ft at base and top and the walls are 3ft high.
    I made it for growing short plants, as i've chosen lowryder to learn with.
    I bought a 250w CFL which does 19,500 Lumens, this hangs on hooks from the ceiling of the box.
    I have two plants, each in 8x8" round plant pots.
    The distance between the plants and the light is 10" and i'm getting temps there of 32 celsius (90 farenheit).
    I am blowing a fan across the plant crowns to cool the air down, i have two extractor fans (high up) doing 72cfm each, so 144cfm total.
    I have an intake fan (low down) doing 72cfm of cool intake.

    Is there a way to cool the air right underneath the light ?

    I think i read somewhere about having a glass sheet in between the light and the plants but i can't find the post.

    Any help greatly appreciated


    Thanks,

    nibs.
    nibblebit Reviewed by nibblebit on . Combatting high temps in a 12 cubic feet growbox 250 watt CFL Hi. I made a growbox for my first grow, it's 2x2ft at base and top and the walls are 3ft high. I made it for growing short plants, as i've chosen lowryder to learn with. I bought a 250w CFL which does 19,500 Lumens, this hangs on hooks from the ceiling of the box. I have two plants, each in 8x8" round plant pots. The distance between the plants and the light is 10" and i'm getting temps there of 32 celsius (90 farenheit). I am blowing a fan across the plant crowns to cool the air down, Rating: 5

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  3.     
    #2
    Member

    Combatting high temps in a 12 cubic feet growbox 250 watt CFL

    Here's a pic.

    Attachment 284147

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