Cycle of light

35 to 40 DLI will be max you can give over 12 or 18 hours per day or 24 for that matter, given ambient co2. this varies. feeding properly, temps and rh matter too, as far as maximizing available co2 use. same things you'd have to worry about with a young autoflower. if doing 12/12 from seed it'll be fine. ramp up light as it matures. allow the distance between growth nodes dictate that process. 35 dLI over 12 or 35DLI over 18 will have same effects on plant. if it is too much over 18 it'll be too much over 12.

In dem Zustand sollte die Pflanze wahrscheinlich irgendwas um die 10-15 DLI bekommen. Das wären ppfd bei 12/12 ca. 250 - 350 µmol/s, die sie ihr geben sollten.

Not sure what the question is exactly.. It will likely stay pretty tight.. The best strategy is to go 3-4 weeks at 18/6 if possible but if you’re in a tent or room with 12/12 already.. not much you can do there. The earliest it will flower is week 3-4.

I do not understand your question but she will be fine. Yes 12/12 from the start is not ideal but still better then nothing. If you got the space better grow some weed 😋