24 hour light vs. 18/6.

There’s no need to trim an auto that much of anything you’re hurting it

A PAR/PPFD meter is needed. Some lights will give better results running 24/7 vs 18/6 and vise-versa. If the plants have ample usable light...18/6 is the way to go. If you can slap down 2000 uMols/m2 then mimic the sun. Less light intensity, go 24hrs. IMO. Also, light height...big factor. The difference between needing 24hr light and 18hrs could be light height. I recommend the Photone app for phones. Be sure to calibrate with a spec sheet from your light mfg. Energy per day is what we're after.