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Maximum ppfd should be around 2000<ref> Light dependence of photosynthesis and water vapor exchange... (Chandra, 2015)- https://doi.org/10.1016/j.jarmap.2015.03.002</ref>
Yield is linear with ppfd to at least 2000umols<ref>Cannabis Yield, Potency, and Leaf Photosynthesis Respond Differently to Increasing Light Levels in an Indoor Environment (Rodriguez-Morrison, 2021) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8144505/</ref>
<ref>https://www.licor.com/documents/c8jrv1uxa6yasnrgy2esxksh0rkfhdik</ref>
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