Good question, until one of the experts stops by I'll give it a guess......

I would say that as long as the light is on for 15-20 hours at a time then it will be alright. That should keep the plant in veg state. I believe this stress will only effect the rate of growth.

I would definitely get your lights on a timer asap or at least before you go into flower as stress at this time can cause your girls to hermie (I assume the males would have been killed by then).

I like to keep it simple, if I haven't seen it while searching, then no one is really talking about it, so it probably is something to avoid.

Good Luck.....:thumbsup: