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How much LED light can a plant handle?

Discussion in 'Indoor Growing' started by Lite, Nov 6, 2017.

  1.  
    Lite

    Lite Well-Known Member

    I am testing out how much LED light a beautiful baby can handle. I have been stepping up light over the past 2 weeks since i switched to 12/12.

    day 1 started with 400w cob
    day 4 added 200watt LED panel
    day 8 added 150 watt LED panel
    Day 13 added 120 watt LED panel

    so far shes thriving. Single plant in 3x3 coco drinking a gallon for breakfast and another gallon and a half for dinner.

    how much can she handle? I plan on slapping in another 400w cob in a few days once she adjusts to the current level of light.

    when does light burn set in?

    WattageLED.jpeg 20171106_184010_preview (1).jpeg 20171103_173938_preview.jpeg IMG_20171105_101244_preview.jpeg 20171105_165625.jpg
     

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  2.  
    Sour Wreck

    Sour Wreck Well-Known Member

    you'll probably run out of head room for lights before you can reach a burn potential.

    following
     
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  3.  
    Lite

    Lite Well-Known Member

    i just tied them all back down a bit to spread them out as best i can.
     
  4.  
    SPLFreak808

    SPLFreak808 Well-Known Member

    Genetics,health & environment type play a big role with a plants maximum ppfd.

    You are somewhere around 450-500w actual draw yeah? That's not bad at all in a 3x3 with those chips, may want to keep an eye out if you end up adding more.
     
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  5.  
    Colo MMJ

    Colo MMJ Well-Known Member

    Do you think he or she is a little too close to the plants? I think minimum 18 inches away. I might move them up a bit.
     
  6.  
    Bigbudwolf420

    Bigbudwolf420 Member

    I agree.looks like everything is good an d light looks good.sounds like alot of fluids but I don't know everything.good job bro
     
  7.  
    Sour Wreck

    Sour Wreck Well-Known Member

    yes, i agree
    but i wasn't talking about height above plants when i mentioned head room. i was referring how much wattage you can cram into 9 sq ft.
     
  8.  
    Bigbudwolf420

    Bigbudwolf420 Member

    Get a par meter and a few more lights and let us know.I mean you can get led and fluorescent pretty close but not mh/hps.I don't know if I'm understand your question.you can lower lights to get more intense light.led are supposed to be fairly close.if you get to too much it'll start bleaching leaves etc.probably tell too that the soil drys quicker.obviously heat and electric bill goes up.I think you need to get the best and most light possible to get healthy girls with nice buds.get a light intensity meter and check it.really only way to tell all over area.can get cheap and their pretty accurate.hope this helps.also different light spectrums help in my opinion and what I've read.and that's substantial.lol
     
  9.  
    Lite

    Lite Well-Known Member

    No 871 actual draw. see pic I took of wall wattage meter.
     
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  10.  
    Lite

    Lite Well-Known Member

    I've been moving the lights up every few days, I will run out of rooms eventually
    adding another 400 actual watt panel this evening. another 4chip cob
     
    Last edited: Nov 7, 2017
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  11.  
    twistedvinesofbud

    twistedvinesofbud Member

    Hello, I usually just look around on roll it up. But, I figure wth and chit chat about led's. I have 2 450w LEDS and I have a plant per light. the lamp is less that 12 inches away. I will post a pic when I get home. These 2 ladies have had these lights completely dedicated to them since the veg cycle. They are almost ready and I can't wait. 20171107_085014.jpg
     
  12.  
    Lite

    Lite Well-Known Member


    oh boy you're really giving me high hopes for my babies
     
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  13.  
    Tupapa

    Tupapa Well-Known Member

    The question is not how much she can handle., Rather how much you're wasting., For a sigle plant 300 watts of actual watts its normally enough..
     
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  14.  
    Tupapa

    Tupapa Well-Known Member

    Your only enemy eventually will be heat., But u will never be able to provide as close to the sun.
     
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  15.  
    Colo MMJ

    Colo MMJ Well-Known Member

    Growmau5 had a video about 6 months ago on youtube where he was testing one of his fixtures and he said it was too much lt causing bleaching. She or he seems to have more than enough lights. She just has to watch the heat, water them, watch for bugs and just be patient.
     
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  16.  
    Colo MMJ

    Colo MMJ Well-Known Member

    Looks great. What 450W LED lights you running bro?
     
  17.  
    Lite

    Lite Well-Known Member

    I have a 440cfm exhaust fan pulling through a carbon filter. I have the boot In place in the ceiling to hookup a 6" exhaust to my return on my central air, had to do it for another tent hoping I don't need it for this one.

    and yeah, as I have increased the light i have heavily increased it's watering, aswell as changed up my feeding to spread nutrients out over 3 gallons instead of 1
     
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  18.  
    Kerovan

    Kerovan Well-Known Member

    Actually you do not have 2 450W led's. You have 2 200W leds, that is the actual wattage of those Viparspectra 450's.
     
  19.  
    Yodaweed

    Yodaweed Well-Known Member

    lol those viparspectra are glorified space heaters they produce a heck of a lot more heat than traditional hid lighting and a lot less weed.
     
  20.  
    Lite

    Lite Well-Known Member

    I ran with two viperspectras on my last grow. I don't believe it's anything greater than any other light in that price range
     

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