Feature: 1. WITH LIGHT SENSOR: Chicken coops door features a light sensing mode that automatically opens and closes at dawn or dusk with automatic sensing. 2. SAFE AND STURDY: Automatic chicken coop door is safer and strong enough to resist predators and protect poultry. 3. TWO TYPES OF POWER SUPPLY: Solar chicken door supports AA battery or energy saving solar panel power supply, making it more convenient to use. 4. APPLICABLE OBJECTS: Automatic chicken door is suitable for all sizes of chickens and ducks, bringing convenience to your poultry's life. 5. PREMIUM PLASTIC MATERIALS: Solar powered chicken door is made of premium plastic material, safe and durable, light weight and easy to use. Specification: Item Type: Automatic Chicken Coop Door Material: Plastic Applicable Objects: Chicken, Duck, Goose Product Size: Approx. 35x24.2cm / 13.8x9.5in, After The Chicken Coop Door Open: Approx. 25x20cm / 9.8x7.9in Host Battery (Shipped Without Batteries): 3 x AA Dry Cell Or LR06 Alkaline Type Batteries Solar Panel Battery (Shipped With Built In Battery): 18650 Model, Lithium Ion Battery, 1200MAH Chicken Coop Door Power Supply: AA Batteries Or Solar Panel Power Supply Either One Of Two Control Function: Light Sensor Gross Weight: 773g/27.3oz. Package List: 1 x Automatic Chicken Coop Door9 x Screws1 x Solar Panel1 x Solar Panel Accessory Rod1 x Instruction Manual Note: 1. Solar panel style random, screw more than counted as a gift.2. Please allow some error due to manual measurement.