24/0 or 20/4

[KonopCh]

19/5.
Because 20/4 and 24/0 are too common. :smoking:

(seriously, it's all about DLI)

 

[Harry_Kovert]

Glad it worked out for you...pretty interested in your final thoughts! Please report back mate.

I'll certainly report back in due course - probably on Saturday as the plants will have had a week with the 20/4 schedule.

 

[Frenjamin Banklin]

16/8
DLI

 

[Boognelson87]

I run 19/5. Just bwcause 18/6 and 20/4 couldnt make my mind up. Ran 24/0 and the plants at least the strains i grew preferred or appeared to prefer a little darkness. So i been at 19/5 ever since.

 

[growwiththeflow420]

19/5.
Because 20/4 and 24/0 are too common. :smoking:

(seriously, it's all about DLI)

So how do I calculate the DLI without a PPDF Meter? I guess not at all?!

 

[KonopCh]

You can get pretty close with 20€ LUX meter. Enough close for us, amateurs (+/- 10%).

 

[NorthernLights_420]

I veg for 4 weeks 24/7 then flip it back to 20/4. Dehumidifier keeps my tent perfect humidity and temp. Just leave the top unzipped a little or it would get to 80s. But if I leave my tent door unzipped up top 1/4 way down it stays like 73 degrees Fahrenheit. Oscilating tower fan blowing across my tent. Dehumidifier runs 24/7 along with my fan and temps and humidity is perfect when lights are off too. I running 2000 watt wills cob led full spectrum light and with no dehumidifier the humidity gets high and the temp is 68 to 71. Dehumidifier helps my tent tremendously

 

[Jovinn]

It's really too bad they didn't name the "dark cycle" the more accurate " light independent cycle" in photosynthesis. Plants don't do anything in the dark (besides signal flowering in photos) that they can't do with the light on. Things without a nervous system cannot "sleep". If it weren't for the ability to run 24 hrs full time, I wouldn't even bother with an autoflower. Just my opinion.

 

[JSH1973]

I switched from 24 to 20 hours and find that nute and ph management to be a lot easier and forgiving, for me 24 hours wont exist again until I have 100% control over temp and humidity 24/7 and possibly also a co2 system.

 

[Olderfart]

I do 19/5 because I set my timer that way on accident and have been too lazy to reset it.

You are not the only one. Mind you, I eventually reset things to 20/4.

I've done 24/0, 19/5, and 20/4. They all work. They all get screwed up at least a bit by me, likely more screwed up by me than by any difference in these timings.

A proper test of this requires a few things : clones, not seeds; identical environments except for light; meaningful sample size for each treatment. Not going to happen with most home grows.

OTOH, playing can be fun.