From what I read, it suggest lighting the coop especially at dusk so the chickens will go into the coop. We do not have electric to our coop so I have been researching some alternatives. I found solar lights that come on at dusk and can be adjusted to go off on a timer. So far they have worked great. Very bright LED's that have replaceable batteries and I hung them from the ceiling in our 5x6 coop.I am not sure if anyone has posted this in the past, but i really recommend the lights. The cheapest I could find them was on AMAZON.