FLOOFI Automatic Chicken Coop Door Opener with Light Sensing (Blue and Yellow) FI-CCD-100-DLFeatures Light sensor chicken coop door: Chicken coop door is controlled by light sensor. When it is dark, it will automatically close the door, and when it is dawn, it will automatically open the door. You don't need to go to the yard to open the chicken coop door yourself. Battery powered: Chicken door only needs 3 AA batteries to operate (the product does not include batteries), no wiring is required, the possibility of damage is very small, and