i think i've read something like that to be honest..i can't remember where but i think it was a poting over here.....you do this to manipulate the photoperiod and subsequently the life of the plant but i can't remember any more details.....it's a concept that needs a lot of precision and i think lasts for about two weeks and it's done to speed up the process, i am not sure that it's 8/8 though, i think it's more cmplicated than that!