1. Safe and harmless: This automatic chicken coop door is very lightweight and easy to use. The professional design ensures that it won't harm the safety of your pets. 2. Battery-powered: It is powered by 3 AA dry batteries (not included). The battery life is at least 1 year. You can replace the batteries within 3 minutes without a solar panel. 3. Easy to install: It uses screw connections and is easy to install. The door can be installed in no more than 10 minutes without complicated wires or cables. It is convenient and fast. 4. Photosensitive: It has easy-to-program buttons for automatic opening and closing, depending on the light. It opens automatically in the morning and closes at night. 5. High-quality materials: Our chicken coop door is made of high-quality plastic, which is safe, wear-resistant, and durable. It can work in any environment. Specifications: