I have been lighting my coop from August 15th until May 15th for 20 years. I started lighting because the article in Organic Gardening in 1993 told me to do it & told me everything else I needed to know for chickens. My chickens have always molted & taken their turns at "resting" in their second fall even with lighting. I never understood the comments that lighting keeps chickens from molting. I have never found that to be true. They molted on schedule & the light was there for the ones that were still laying. Chickens indeed are born with all the eggs they will ever have, but so is every other female in the food chain & very few ever "run out" including humans. I have had 8 year old chickens laying a few eggs a week, even though they laid like gangbusters in their first 2 years and were hatchery stock. This is just my experience, so everyone has to make their own decision on lighting.