1. Strong durability: The material of the door frame is iron sheet and the plate is aluminum alloy, so you don't have to worry about rust. The door is safe and durable, lightweight and not easy to lose paint. 2. 2 Modes: The door adopts both timer mode and manual mode. Users can manually set the opening and closing time according to the season, direction and normal entry and exit time of chickens, or they can open and close it by pulling and by pressing manually. 3. LED display: The chicken coop door is equipped with a high-definition LED display. Use the buttons below to set the time. The specific opening and closing time can be clearly seen through the screen. 4. Suitable size: The chicken coop door is suitable for all kinds of poultry of suitable size, such as chickens, ducks, geese, and brings convenience to poultry life. 5. Poultry safety: The automatic chicken cage door is safe and firm, which can resist dangerous animals and ensure the safety of poultry. Specification: Material: Iron plate Aluminum alloy Applicable objects: chicken, duck and goose Product size: approx. 35.3 x 24.3 cm / 13.9 x 9.6 in Chicken coop door open: approx. 25x20cm / 9.8x7.9in High battery (delivered without battery): AA dry battery or LR06 x 3 alkaline battery Solar panel battery (provided with built-in battery): lithium-ion battery, 1200MAH Power supply mode: AA battery or solar panel Item Weight: 1635.00g/57.67oz Package List: 1 x Chicken Coop Door 8 Screws 1 Screwdriver 1 Instruction 1 Solar Panel. 2 x Solar Panel Bracket Accessories Note: 1. Door comes without battery and solar panel comes with built-in battery.2. Do not use rechargeable batteries in the equipment.3. The new battery and the old battery should not be mixed. Before inserting the battery, make sure the battery is inserted with the correct polarity (positive "+" and negative "-"). Remove the battery from the device and handle it safely.4. If the device is inactive for a long time, remove the battery. The power terminal must not be short-circuited.