Flower question

I have 7 sour Zkittles just under 8 weeks old I have had the lights switched to 12/12 a week tommorow they are under 600w hps and all potted in soil I was told they where autos when I bought the seeds And they where showing pre flower white hairs about 3 weeks ago but with a bit of research come to find they where photos how long does it usually take to see flowers after switching to 12/12 all help is appreciated thank you

you'll see pistils shooting up everywhere in a week or so.

Do you think these could be autos or not

2 months old? thats a photoperiod.

My heads fucked with them I grew them thinking they where autos if I had of knew they where photoperiod I would have topped them