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Discussion in 'Indoor Growing' started by InternationalBeanSmuggler, Nov 10, 2017.

  1. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    mklmkm.
     

    Attached Files:

    Last edited: Jan 4, 2018
    Wylde Bobb likes this.
  2. Sunshine

    Sunshine Organic Fanatic

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  3. Sunshine

    Sunshine Organic Fanatic

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    From 1 light I think dialled you could expect to get 5-7oz with the right strain/s from that space and head room, given your actual wattage from the mars300s is around 150, that would equate to 5oz=140grams/150watts=0.93gpw
    The yield is limited by the size and headroom of your tent so by adding more light you will likely see a drop in your gpw which will accelerate the more light you add.
    1 light 50z=0.93gram per watt
    2 light 7oz=196g/300w= 0.65gpw
    3 lights 8oz=224g/450w= 0.5gpw
    The above calculations demonstrate the diminishing returns from adding more light cause by your limiting factor, in this case the grow space.
    Having said that, if you can cool the grow effectively you will get some super dense buds from that kind of wattage! :sun:
     
  4. BudMonster

    BudMonster Active Member

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  5. Sunshine

    Sunshine Organic Fanatic

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  6. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    Oh WOW great ! I also repositioned my tent right underneath the window. The temp outside is about 5 degs . I can open the window and vent straight out with a 50 cm hose. Do you think i can lower temps with a fan also next to the window and get 3 x 300W in there ? I think i can keep temps to 27 degs with 900W LED... !

    What your reckon ?

    Also for your interest its possible to squeeze 8 x 3 Gallon pots in there !
     
  7. Sunshine

    Sunshine Organic Fanatic

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    I'd be inclined to stick with 2 lights then you'd have 1 light over each set of 4 pots and pretty close too :)
    That's also 600w/300w actual over 6sq foot which is bang on 50w p/sqft which is spot on for large bud growth. I've had extremely large buds (leg sized) from 37.5w/sq ft with 600hps's. So at 50w/sq ft you're golden.
    I don't think there's any benefit in the extra spend on the additional light as you're already where you want to be with the 2 lights and that means you've got more money for different exciting seed varieties :)
     
  8. Sunshine

    Sunshine Organic Fanatic

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  9. Sunshine

    Sunshine Organic Fanatic

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    Looking good, excellent that they all popped! :)
    It's going to be super bright with the 3 x 300s in there!!!! Can't wait to see it all rigged up :sun:
     
  10. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    I will rig the 3 x 300W fully to the top. The temps are so cool im looking forward to what will happen with yield - and nug density.
    They seem to love the bags / pots !
     
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  11. Sunshine

    Sunshine Organic Fanatic

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    Those watts per sq foot are going to be insane, this is going to be an awesome grow to follow! :)
     
  12. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    Any ideas of how to rig my system with the carbon filter ? I was thinking about can bolted straight on the fan sucking air out 50 cm of hose straight out the window.Maybe i can better use cool air drawn in ?
     
  13. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    A moment of insanity , i want 10 zips ! I ordered another 300 w ! Thats 4 x 300 w now !
     
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  14. Sunshine

    Sunshine Organic Fanatic

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    With the space limitations you need to run your vent from the extraction hole to your fan which will blow air through your carbon filter into the room (you can mount the fan directly on top of the filter with duct tape), so you'll be sucking air out via the duct and pushing it through the carbon in this case :)
     
  15. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    Ok but no way to bring cool air in?
     
  16. Sunshine

    Sunshine Organic Fanatic

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    If your sucking air out to the can you could then run a passive intake to the window with ductings. So air would come in from the outside sucked through the cab and out to the can ;)
     
  17. InternationalBeanSmuggler

    InternationalBeanSmuggler Well-Known Member

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    thanks .What are your thoughts on how to use 4 x 300 W LED and expected yield ?
     
  18. Sunshine

    Sunshine Organic Fanatic

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    I'd take a wild guess at somewhere in the region of .4-.5gpw if you can control the heat :)
     
  19. m8ty

    m8ty New Member

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    That's allot of light and too much light will kill your plants.. are you planning on growing 1200 watts of LED worth of plants, that's allot of tables full...

    Have you watched this video before?? it explains how to use the light so you don't kill your plants.



     
    Last edited: Nov 17, 2017
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  20. Sunshine

    Sunshine Organic Fanatic

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    Welcome to FC @m8ty good info :)