Oh yea give them 14 hours of light to (keep them laying) or stop them laying. I strung one white Christmas tube light around the ceiling and put it on a timer 7pm to 9pm and 6am to 7am when the coop opens. What did I get for my trouble. More wasted food on the floor despite my best anti-shovel design. They must be getting a mouth full and spitting it at each other. A hour to grind the nice big easy to cat scoop plop piles into hundreds of small flat crap that falls through the cat scoop. And one egg a day instead of 3. I have two 23 week old Dominique that should be laying. Mostly did the lights for them.