The coop and run at night. The run lights come on every night at 7:30pm, go off at 10:30pm, then back on at 5:00am and off for the day at 7:30am. Everyone is in the coop by 8:15pm usually. We just use the run lights for looks and to light the walkway when closing the coop doors each night.
The Halloween lights in the window are hard to see in this photo.