That is correct according to greenhouses everywhere.
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Thank you! Your Gdp entry in Bom contest was beautiful.
I personally stopped chasing vpd. I just roll at best humidity i can manage easily. Dry here. Can be a slower veg lower humidity but if photo no worries. I sit at 35-50% the whole way. The plants will do well in a pretty wide range. I have hit 90+in summer with 40%rh. I adjust airflow in and out plus circulation as needed myself. Dont stress too hard. As mentioned this is not the main watch if in reasonable ranges.
Thanks @PhatPat appreciate the kind words. I just lit up some of Sheila for the first time after the Lions game. It was incredibly smooth and tasty. I gave that bud to my Daughter for her 40th Birthday. Lol
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Oh thats cool! A gift from the heart. 
So awesome!!!
You will likely find several different charts due to the fact that different lights can heat leaves to different levels.
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Thank you! This subject is making me more nuts…
Thank you!