So, I am sitting here musing about what effect the 13.5 hours of light each day is going to do to the harvest time of these plants. If you think about it, that is 90 extra hours in a 60 day period, and if you break that down into how much extra that is over a 12/12 day, it is roughly a week of extra daylight, or 7.5 days. Does this mean the plants could finish a week early? The world wants to know. Any thoughts?
what are you running now ?
a lot will depend on the strength and quality of light. you can run autos under 18/ 6 in flower if they get enough dli. i ran 12 / 12 and still managed to light stress them.
you can run photos on a diminishing schedule to speed up flower if you have enough light. autos will just take longer to mature.