* [Reliable Automatic Mode] - Our chicken coop door uses high-end chips from the USA and has undergone multiple iterations of upgrades over 3 years, so its core function of automatically opening the door system is already very mature and stable. * [Adapt to Low-Temperature Weather] - A special low-temperature resistant battery has been used. It can be charged and discharged normally at temperatures between -4℉---140℉(-20℃---60℃), ensuring normal operation of the automatic chicken coop door. The 5300mAh large battery ensures longer endurance. * [Adapt to Rainy Weather] - Exclusively using 7 watts (higher than the market's common 3.5W) high-power solar panels, it can still charge the battery even under low light intensity conditions. * [Power-off Door Opening] - Our automatic chicken door can be opened by mechanical knob in case of power failure. * [Robust and Anti-Theft] - Made from high-quality aluminum alloy, it is resistant to deformation (suitable for temperatures between -15°F to 140°F). Coupled with an innovative anti-theft lock and alarm system, your chickens are completely secure. * [Larger Opening Size] - The size of the chicken door has been expanded to 11.6*8.5 inches, allowing your chickens to enter and exit freely, and even allowing you to raise ducks. * [No More Cutting Chicken Necks] - The unique rotating door with an anti-pinch function can prevent the chicken's neck from being "cut" by the door sliding down.