What Logan says plus run lights at night to help. It’s usually cheaper rates then too.
If you're in flower and running lights on from 7 am to 7 pm, how would you reverse the schedule to run lights at night? I'm assuming it's done by extending the dark time, not the lights on time. Is it best to leave the lights off for 24 hours then start the new schedule? Or, do it gradually maybe 3 hours at a time (15 hour dark periods 4 times)?
It’s two monster cookie and one wedding cake I believe they’re 50/50 hybrids this my second run with the monster cookie took 11 weeks to finish my first with the wedding cake though but the m.c was very dense so should I just make Mother’s from them was my second question the are pretty big already the canopy is pretty much hanging over the pots they’ve been topped twice and doing lst
that also a good question
Correct. An easy, low stress way to go about that is to, each day, allow the dark period to be extended by 1 or 2 hours and as you said, do NOT extend the light cycle. You could also do 3hrs at a time like you're saying and that should work just fine. You could allow the light to stay out for 24hrs, and I don't think it would cause any harm, but it would be more shock for your plants as opposed to gradually doing so. But if you're in a position where, maybe you have a vacation coming up or new job starting where you simply cannot wait the 4-7 days to correct the lighting cycle, then go for the 24hrs of dark.
This is more because of the temperatures rather than humidity, InTheValley. It makes a very large difference for people in areas like where I am, where day time temps are above 90F and nighttime temps below 70F. If I ran my lights during the daytime, my temps would regularly exceed 80F and being in hydroponics, I cannot afford for my water temps to rise too high. These types of situations offer the largest benefits from running at night time. Using a 12,000 BTU window AC unit that's air is directly funneled into my intake, I can still barely keep temps below 80F in mid-day.
VPD?