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Thread: DIY Growbox build guide

  1. #21

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    Quote Originally Posted by M_C View Post


    If you can have your COBs that close then, with all due respect to your setup, you have some major problems going on.... just sayin'...

    See Post #10
    I think the size is not really coming through on the photos. From the top of the canopy I have about 15cm. Also please consider that I am running the LEDs on a super low 700mA so do not even try to compare it to the hand burning heat of a HPS lamp.

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  3. #22

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    Holy smokes TT, that is amazing!!!
    I'll never reach that size with my autoflowers for sure.
    I will definitely send you a photo of the final state, but if it comes even quarter of what you achieved I will be a happy smoker.
    Last edited by GrowBoxGuy; 04-10-17 at 11:51 PM.

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  5. #23

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    Quote Originally Posted by GrowBoxGuy View Post
    I think the size is not really coming through on the photos. From the top of the canopy I have about 15cm. Also please consider that I am running the LEDs on a super low 700mA so do not even try to compare it to the hand burning heat of a HPS lamp.
    15/20cm was about my guess... turning down the driver output on LED isn't really the best move TBH. Yes, it can easily be done.... but is best left for room lighting where a couple of hundred lumens do the job easily... Cannabis needs more, as you can see when you look at the crowns on your plant

    Growing small amounts of weed, a spliff or two, is easy, look for my cuppaplant diary that was pretty much done on a windowsill with negligible smell...

    But you still haven't mentioned the COB's that you are using... I would hazard a guess that that the heat sinks you use are far in excess of what you need....
    It's Not What You Know, It's What You Can Prove

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  7. #24
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    Thing is tho i got light bleaching on every plant in that drobe to small a space for that much light

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  9. #25

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    250w HPS in a smaller space than you have... and I had 2 plants in the room


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  11. #26

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    Quote Originally Posted by M_C View Post
    15/20cm was about my guess... turning down the driver output on LED isn't really the best move TBH. Yes, it can easily be done.... but is best left for room lighting where a couple of hundred lumens do the job easily... Cannabis needs more, as you can see when you look at the crowns on your plant

    Growing small amounts of weed, a spliff or two, is easy, look for my cuppaplant diary that was pretty much done on a windowsill with negligible smell...

    But you still haven't mentioned the COB's that you are using... I would hazard a guess that that the heat sinks you use are far in excess of what you need....
    I did answer that: Look at response #17 ( I use Citizen CLU048-1212C4 LEDs, 10 of them). The heatsinks are definitely oversized, I wanted something that can withstand a 2100 mA driver too.
    Still its too early to tell what the final result will be like. Possibly you are right and I will have to get beefier drivers for the next round. I am not turning down the drivers, they do 700mA max
    Last edited by GrowBoxGuy; 05-10-17 at 12:02 AM.

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  13. #27
    MrChedHead Guest

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    Notice no light stress ^^^ perfect fat cola’d plant... i probs should have gone with 250 🙄

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  15. #28

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  17. #29

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    Quote Originally Posted by GrowBoxGuy View Post
    I did answer that: Look at response #17 ( I use Citizen CLU048-1212C4 LEDs, 10 of them).
    My bad, I missed that

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  19. #30

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    So, Including the grow room itself, what price has this grow cost you?

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