We put an insulated sky light in our coop. They seem to like it so far. Hoping it keeps them warm in the winter and gives them plenty of light in the cold months. Hopefully there isn't a downfall to it. Haven't had a winter with it yet so wondered. The coop is insulate and well vented and full of straw and shavings to keep warm. I don't plan to heat it as we have power outages often. Thoughts?