Lol you dont flip autoflowers they flower themselves thats why they are called autoflowers I dunno why alot of people think this but if you gave an auto 12/12 you would stress it alot or atleast double or triple the time it took to grow lol 18/6,20/4, and 24 hour are your options when it comes to autos I would advise 20 on 4 off most do 18/6 all the way through that why alot of growers keep autos in thier mother room lol cause they flower on a veg cycle lol