I have four flood lights on my house near the coop. The first set is about 10 feet from the coop, shining into the east side, they are 60 watt lights. The second set is shining into the south side, about 2 feet above the coup and 6 ft away. There is enough light that I can see the chickens on the roost clear enough to count them (Barred Rocks). I can also see to the bottom of the floor. The coup has 18x29 inch windows on all sides, with the finished shutters on the west side. The lights in the yard illuminate the 10 x 20 carport, with enough light to read. The ones that face the yard are bright enough for me to see 40 feet from the house. Is that enough light for the winter, or do I need something more inside of the coup.