DLI theory based on lights on total time

So as far as daily light integrity and autos go, in theory; it’s fairly easy to hit a max with good lights in less than 18 hours during flower.

Assuming that plants are better off with a rest period….what is the difference between 35 dli if you give it to plants in 12 hours vs 18? Is it better to have it spread out or piled on in a shorter timeframe?

I know autos flower based on time but it has to be chemically induced in a way. At least that what I would think.

So many variables here. Lights on vs dark changes many grow environments. Just want a discussion on the topic. Willing to research also but if someone knows a lot on these areas of like the discussion.

Here’s an example.

In my home I create co2 by breathing. I’m here sleeping etc in my room 10 hrs a day. Roughly the same timeframe. If I boosted the lights during this period, theoretically I could boost growth by cramming light into them at these hours and it would taper off when I’m not home.
But if I’m running a lower co2 ppm for 18 hrs steady is that closer to ideal? I guess I have certain limitations to how I grow. I want to maximize my grow environment.
Of course, when I’m in the room, temps rise as well. So it’s a bit of a puzzle. Starting point is keeping temp and humidity at ideal levels and the variables that would change are light intensity and daily time the light is administered.

Just a discussion topic. Look forward to it. Thanks.

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I think we improve on nature with light, full intensity for 18 hours straight instead of dim for a couple hours, clouds, etc… and we can supply however much wind we want. So yeah I say there are gains to be had by maximizing what happens during those 18 hours. Or 12.
And I’ve thought variance in night - day temperatures, and barometer, affect how much carbon dioxide the air holds, similar to how it affects oxygen content. Jetting carbs learns this lesson.
Good rabbit hole to jump into, I like it though I’ve never used CO2

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