Not sure If I've mentioned this on riu but I did on 420, my light schedule.
So I have her surrounded by 4 x 600w hps vert bulbs and overhead I have a 400w and a 600 w hps in hoods at angles so they are even distance to both the top flowers and the lower flower's.
Now at the start of 12/12 , 2 vert bulbs come on, then they are replaced by the overhead bulbs then the overhead bulbs are replaced by the other sides 2 vert bulbs, like the sun I have the light so it rise's goes over the plant then goes down on the other side, and this next part will make you laugh, at lights on I have an alarm set that is the sound of a rooster cockadoodle-dooing hahaha I don't know if it helps it my alarm though so I set it to a "natural " sound