Keep your chickens safe and happy by installing a battery operated chicken coop door only from a family-owned and operated business. Happy Henhouse, located in Missouri is a leading company for automatic chicken coop doors. Our weatherproof controllers are powered by batteries and use a heavy duty gear motor, timer, or an adjustable light sensor to allow sunlight to activate the motor, permitting the easy-to-use chicken coop door to open and close automatically with time or the sun. Visit us at : https://happy-henhouse.com/products/automatic-chicken-coop-door-opener-kit-light-sensor-battery-operated