Auto SLH Early Flowering?“

You do not need to switch a Auto to 12/12 but you can if you want to use less power. The DLI is the value which should fit to the stadium of the auto. But running further with more hours is what the plant is now used to. So if you switch light-cyle it will be "confused" for a few days. if you dont know if it is a photo - than just wait to see whre you stand in 3-4 weeks - a auto would be in flower then - with 18/6. A Photo would have grown just bigger and more stable. (remember that a "normal" plant in nature easyly grows 10+x weeks and has 10+x weeks for flowering. so waht we do with Autos and Indoor is cutting the time where possible )

Thats normal" It's an Auto. So thats the signs that the Pre flowering stadium is running and the stretch will begin next days. Also you can say, your auto is now flowering. So stay tuned on 18/6 because the didn't care about the light switch and love the amount of time at 100%. So dont be scared it's all fine! Have an eye on how fast they grow and have a look on the nutriens. 👌