But keep lights on until you see leaves. Then go with lighting schedule I recommended right when you see green leaves. Remember to help seedlings out getting seed hulls & membrane off plant.
On auto seedlings, I do 12/12 to start with, 3 days later 15/9, then 18/6. This allows the plant to slowly adjust to light insensity instead of being stressed out from to much light. Seedlings are sensitive. But it's better to give the plants 6 hours of rest but a minimum on 20/4. Plants on over 20 hours of light seem to have problems later. I've grew AK-47 & too much light early always caused problems early. Increasing light slowly will let you know what's more comfortable with the plant & keep stress down to reduce plants with stunted growth. Good luck
@420Master,
Thanks for all your help. I will give your lighting schedule a try. Should I keep the lights at 50% for this schedule? Maybe increase it to 75% a few weeks in.