I assume the 24 hour black out was due to Kiking off the flower cycle right? If so you can't keep the room sealed for 24 you may have a tough time keeping out during there black out hours also. If you can do that then I would suggest trying just continuing your flower cycle at 12/12. Marking your calendar the day you started 12/12 as day one.... and for gosh sakes stop peeking in there and if you do use a green light at least but I would recomend not making the habit unless your plugging in a sulfur burner or popping a pyrethiume bomb. If you do open your tent or even a beam of light barley getting in can turn a plant hermaphrodite and and seed a whole crop. Think like this if you are asleep and someone keeps turning on the lights to check on you how are you gonna sleep at night probably stressed right? well stressing a a healthy girl could cause it to think it needs to regenerate and a hermey u got young jedi.