My hens are just 6 months old and just started laying. I live in South Lousiana. 6 of my 7 are laying and I am getting 4-6 eggs a day with no supplemental lighting. I was thinking that in the fall, I would do some solar lighting if my egg production drops off. I have no outlet near the run/coop. I would have to run an long extendion cord, and just really have problems with that idea, so solar seems to be the answer. I want to look for one with a timer so that they do get some night time.
Also in about a month, I will be starting quail and am condsidering the same for them.