GrowCNanswered grow question 3 years ago This is the second time BostonGirl has said what I was getting ready to type.
I hope you are in the southern hemisphere or at least the tropics. Auto's need long periods of light for maximum production, like 16-18 hours per day. In the northern hemisphere we are already well past the longest days and they days are getting shorter quickly. So, during flower when the plants really need maximum sun they will be getting less intense sun, for a shorter and shorter amount of time each day.
In the future I would germinate your auto seeds about 8 weeks before the summer solstice (longest day of the year). This will allow the plants to be fully into flower during the longest daylight of the year. You can also use supplemental lighting but that could be difficult outside and could attract attention if you live in a non-legal country/state.