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When the lights on does it need to be continuous?

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When the lights on does it need to be continuous?

Jimmy_Dickskin 13 Replies 1,016 Views
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Jimmy_Dickskin

Jimmy_Dickskin

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#1
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Question- I'm running an auto at 20/4 about 5 weeks into flower. I recently got a new light that keeps it a little warmer than I want in the tent. My question is does the 20 on need to be continuous? Can I do 10 on 2 off and repeat to give it a break for the temp to drop? The same question for photos on 18/6. Does the light need to be constant or can I break it up 9 on 3 off etc?

Thanks.
 
#2
Jimmy_Dickskin said:
Team
Question- I'm running an auto at 20/4 about 5 weeks into flower. I recently got a new light that keeps it a little warmer than I want in the tent. My question is does the 20 on need to be continuous? Can I do 10 on 2 off and repeat to give it a break for the temp to drop? The same question for photos on 18/6. Does the light need to be constant or can I break it up 9 on 3 off etc?

Thanks.
Click to expand...
Try 9/3 or 6/2 with autos if you need to regulate heat. 10/2 sounds fun too!

I started running all my veg photos at 9/3 after experimenting with autos and never ran a straight 18 hrs again.
 
#3
Grownsince95 said:
Try 9/3 or 6/2 with autos if you need to regulate heat. 10/2 sounds fun too!

I started running all my veg photos at 9/3 after experimenting with autos and never ran a straight 18 hrs again.
Click to expand...
Awesome. Thanks for the info. Going to switch it up.
 
#4
Grownsince95 said:
Try 9/3 or 6/2 with autos if you need to regulate heat. 10/2 sounds fun too!

I started running all my veg photos at 9/3 after experimenting with autos and never ran a straight 18 hrs again.
Click to expand...
You'd run your whole auto grow at 6/2?
 
#5
jacare said:
You'd run your whole auto grow at 6/2?
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For vegging photos or autos I stuck with 9/3. My current run is 18/6 but that's because I need the 6 hour long dark to offset high daytime temps. If that wasn't the case I prefer the 9/3 yeah.

This is only my opinion and based on anecdotal evidence but I think that double the amount of light/dark cycles also doubles up the circadian rhythms of the plant leading to increased vigor.
 
#6
Grownsince95 said:
For vegging photos or autos I stuck with 9/3. My current run is 18/6 but that's because I need the 6 hour long dark to offset high daytime temps. If that wasn't the case I prefer the 9/3 yeah.

This is only my opinion and based on anecdotal evidence but I think that double the amount of light/dark cycles also doubles up the circadian rhythms of the plant leading to increased vigor.
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That's really interesting
 
#8
Grownsince95 said:
Yeah and the shitty thing is there's absolutely zero study on it. No science whatsoever and that's really disappointing.

So I wind up sounding like a bro science guy lol 💚
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Yeah. I suppose it all starts with someone and that someone could be you.
Document your results/findings and keep putting it out there.
 
#9
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#12
68 days between these two pictures

Screenshot 20250522 120401
Screenshot 20250522 120501
 
#14
jacare said:
I did just read the whole thing and it's quite impressive the results you got considering your alternative light cycle and limited space and the particular light that you used.
Click to expand...
Genetics has a lot to do with quality too so if you're going to do autos go with Mephisto.
 
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