Samland Classic Automatic Chicken Coop Door Opener Closer KitSamland Classic Automatic Chicken Coop Door Opener Closer Kit This easy to use Classic Chicken Coop Opener Kit will automatically open your chicken coop door in the morning and close it at night by setting the timer or the light sensor. The door opener runs on 4 x AA batteries (not included) which can run up to 6 month. Features: Operate on light sensor or timer in 4 setup modes: Light sensor control open and close Time control open and close Time