@NORBY, I did something similar by going from 24/0 down to 19/5. I just did it in small steps going down 15 minutes at a time. Didn't see any adverse effects. I did 24/0 through veg to see if it would make a difference. Believe it did as the plants seemed to be a little bit larger, but no definitive proof.
Now I split the difference and do 19/5. The most common schedules are 20/4 and 18/6.
I cycle my lights at 20/4 because after trial and error it seemed to consistently produce the best results. But at the end of the day, proper DLI is the key no matter the schedule.
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My set up is very different than anyone elses, I can set GPS coordinates, I use a lat of 66*N. And the first day of the plant above soil I set the date as May15th thru June 1st. The controller then sets sunrise/sunset for each day to match that locations actual sunrise sunset.In the Olden Days...cough...cough......Breeders would stick Autos up to Sex on 18/6....then change them to 24 hour light.....and that would Flush out any Hermies...........![]()
Yes, still trimming, and yes, the new grow room really has delivered.You Finished with Trim jail @MedCzech .....?........has the New growroom paid you back for all the hard work......?
Back on the music subject little stranger is one of my favorite LS artist finds thanks @Frank the Dank and @PinkyNotTheBrain