Yeah, it is.. and you can use that.. but I would use 24/7 for vegging... the more light, the longer it takes, but the better bud, the less light, the quicker, but not as good.. You change your lights to 12 12 when you want to start flowering.. this should be the latest you can, if your patient.
once again.. the longer you wait, the better bud, and the idea is to let the plant get as old as it can before budding... Im new.. but Ive read up..
Hope that helps..