What does this mean?

[Davidj56]

What does 12/12 light cycle mean?? What is it?? If your doing it how old does the plant have to be to do it??

Davidj56 Reviewed by Davidj56 on 07-01-2006. What does this mean? What does 12/12 light cycle mean?? What is it?? If your doing it how old does the plant have to be to do it?? Rating: 5

[klonopin]

12 hours in the light, 12 hours not. you should go down to growing forums they'll help you out