i'm not sure exactly how long the dark has to be to start flowering(12/12 for flower but 13/11 works to, so.......) but over 6 hrs and you'r playing with fire. i could be wrong so maybe someone else can chime in. they are in the room with you? you know the dark period has to be complete darkness with no interuptions. it asbsolutely has to be complete darkness for flowering but it is still important in veg imo. i have heard people have problems from just the red "reset" light on power strips. i cover mine with tape to be safe. good luck