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Thread: Spectra for CPs

  1. #17
    Lotsa blue bluemax's Avatar
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    emc2 - nicely explained. Thanks! But I LIKE blue better! Ha!

    I am reminded that I really need to measure the wattage on the led 'bulbs' that I am using. Stated wattage seems to be wildly inaccurate from what I have heard.
    - Mark

  2. #18
    nimbulan's Avatar
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    Wattage for LEDs isn't a terribly useful number unless you're looking to calculate power efficiency since the efficiency can vary quite a lot depending on which diodes are used. They should be providing light output values in lumens at the very least, though growlights would be better with a PAR value as well.

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