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  1. Plants
    Alternate question: Is there a PAR meter that isn't super expensive that still functions well? https://www.amazon.com/Apogee-Spectrum-Accurate-Lightweight-Waterproof/dp/B077DWXKSY/ref=sr_1_1_sspa?keywords=par+meter&qid=1560108882&s=gateway&sr=8-1-spons&psc=1 ^This PAR meter appears to be the...
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