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MeGaKiLlErMaN
Last Activity:
May 27, 2017 at 7:52 AM
Joined:
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Birthday:
Dec 16, 1990 (Age: 26)
Location:
Michigan, Near Rock City
Occupation:
Video Producer/ Music Producer/ AV Tech

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MeGaKiLlErMaN

Well-Known Member, Male, 26, from Michigan, Near Rock City

MeGaKiLlErMaN was last seen:
May 27, 2017 at 7:52 AM
    1.  
      Levradus
      Levradus
      Im from turkey usual voltage 220
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  • About

    Gender:
    Male
    Birthday:
    Dec 16, 1990 (Age: 26)
    Location:
    Michigan, Near Rock City
    Occupation:
    Video Producer/ Music Producer/ AV Tech

    Signature

    Why COBs? Efficiency. For every 100watts of energy used your plants see what ever Percentage of efficiency they are: KIND epistsr LEDs 22.5% Plants see 22.5 Watts, HPS 30%... Switch to cobs and your plants see upwards of 60%. ;) More light = More good.

    Click to learn! (open)


    Light Penetration
    In practice vs what you've been told
    Test for yourself



    Checked it out and just as I thought it isn't really a thing... If you have a tight canopy (scrog or just a trellis) you wont have any light over 100PPF going through the first layer of leaves making this for all intents and purposes a pointless thing to bring up. The numbers were the same for HPS, DE HPS, and COBS.

    The only way to get more into the canopy is side lighting and not having a hot spot (IE multiple LES) Which might be a good idea.

    Now if you have a stretchy strain then the more PPF/D you have the farther down the light will go, but that doesn't necessarily correlate to more wattage. That "penetration" only exists because there is space for light to pass through (those stretchy strains), but with a proper canopy that's pointless anyways.

    Long story short, More PPF/D in a area (to a certain level) is what makes penetration a thing. its not directly dictated by power or how many watts you're pushing, but rather the usable light that is being pushed on the canopy level.


    Proof that Blurple is not the best option (here until proven otherwise)
    less than .5G/W

    http://www.growweedeasy.com/kind-k5-xl1000-led-grow-light-journal

    Unbiased PAR meter results at 2FT away

    [​IMG]


    PAR Results at 1FT away

    [​IMG]

    DE HPS at 3FT

    [​IMG]

    86F is the best temp to run efficiency wise
    [​IMG]


    Top End COB comparison
    [​IMG]


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