New growers, constantly ask these kind of questions!...and I'm sure many have experimented with different light cycles. But, none have come running back and said ...
"HEY!...this worked great. I'm gonna do this everytime"

We argue the merits of 18/6 or 20/4 or 24/0 for vegging all the time....and
Bottomline: they all work well for the individual grower to chose one that fits their situation...:thumbsup:

There's not much arguement about 12/12 for flowering..it works well...Case Closed....but, feel free to experiment...
..let us know how it works out.

I don't experiment, much...I just want to supply myself with as much weed as possible. I've suffered mistakes...following the normal procedures..I don't need anything ...'iffy'...too much lost time that way.

I use 18/6 for vegging...cause...I can't fuck with light on all the time...