0:45 difference does not equal 2 weeks difference.
Remember too that with faster harvest comes loss in yield.
Unless you have a compelling reason to do so, such as trying to run a pure-organic grow in a room that is INFESTED with mites, and need to keep ahead of them without synthetics, stick with 12/12. And that example is kinda a stretch.
stinkyattic Reviewed by stinkyattic on . 12/12? does everyone here run flowering rooms with 12/12 lighting exactly? Rating: 5