We decided not to artificially light our coops. We thought it would help with the longevity of the life of our birds, not to force them to lay unnaturally. Hey, we all need a break in the winter!
But we do a short light in the evening now, it comes on at dusk, and stays on long enough to give them all visibility (and a reminder) to come into the coop in the evening. It has increased egg production a little, but mostly, we want them all in the coop in the winter, since we are away at work. We want to make sure they all see the others and know to go in, before decided to bed down in the tall grass, where they can freeze to death.
But we do a short light in the evening now, it comes on at dusk, and stays on long enough to give them all visibility (and a reminder) to come into the coop in the evening. It has increased egg production a little, but mostly, we want them all in the coop in the winter, since we are away at work. We want to make sure they all see the others and know to go in, before decided to bed down in the tall grass, where they can freeze to death.