Features： 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、 PLASTIC MATERIALS: Solar powered chicken door is made of 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 xAutomatic Chicken Coop Door 9 x Screws 1 x Solar Panel 1 x Solar Panel Accessory Rod 1 x Instruction Manual