Feature: 1. Premium Material: The chicken coop door frame is made of iron sheet metal and the door panel is made of plastic, which is made of premium material, safe and durable, light weight, easy to use, not easy to lose paint, no need to worry about rust and other problems. 2. Dual Mode Combination: Automatic chicken coop door adopts both timer mode and manual mode. The manual mode is by hand pull and hand pressure to achieve the purpose of opening and closing. Easy to program the button. Automatically opens in the morning and closes at night. 3. Power Supply: The controller of the fully automatic metal timing rolling shutter chicken coop door is powered by AA batteries or solar panels either one of the two does not require additional complex wiring, just install the solar panel in a location with sufficient outdoor sunlight to use. 4. Timer Mode: Timed chicken house door can be manually set to open and close the door according to the season, direction and the regular entry and exit time of the captive chickens, which is convenient and efficient and guards the poultry from other predators such as weasels at night. 5. LED Display Controller: Automatic chicken coop door is equipped with high definition LED display controller, which makes the time setting clear and easy through the bottom button, and you can clearly see the specific opening and closing time of the chicken coop door. 6. Safety Protection: The rolling curtain poultry house door is suitable for all sizes of chickens and ducks. Convenient for your chickens, ducks and other poultry! Safe and sturdy enough to guard poultry against predators. Specification: Item Type: Automatic Chicken Coop Door Material: Iron Sheet Metal, Plastic Weight: Approx. 2201g/77.6oz Size: Chicken Coop Door Size: Approx. 37x24.7cm / 14.6x9.7in Chicken Coop Door Size (After Opening) : Approx. 28.5x20.5cm / 11.2x8.1in Controller Size: Approx. 11.2x10.2x3.5cm / 4.4x4.0x1.4in Including Hook Height: Aprpox. 11.6cm/4.6in Hook Hole Diameter: Approx. 12x11mm / 0.47x0.43in Applicable Objects: Chickens, Ducks, Geese Controller Batteries (Shipped Without Batteries): AA Dry Cell or LR06 Alkaline Type Batteries x 3 Solar Panel Battery (Shipped with Built in Battery): 18650 Model, Lithium Ion Battery, 1200mAh Power Supply: AA Batteries or Solar Panel Power Supply Either One of Two. Package List: 1 x Chicken Coop Door Host 1 x Controller (Batteries Not Included)10 x Screws 1 x Screwdriver 1 x Manual 1 x Solar Panel 2 x Solar Panel Bracket Accessories Note: 1. Precautions for battery use: 1). Do not use rechargeable batteries in the device. 2). Do not mix new batteries and old batteries. Always make sure the batteries are inserted with the correct polarity (positive "+" and negative "‑") before inserting them. Batteries should be removed from the device and disposed of safely. 3). If the device is left idle for a long time, the batteries should be removed. The power terminals must not be short circuited.2. Please allow some error in manual measurement.