Automatic Chicken Coop Door Solar Powered Chicken Door Opener Daily Programmable Timer Control Item Type: Solar Chicken Coop Door Material: Iron Sheet Metal, Plastic Category: Intelligent Curtain Equipment Applicable: Chicken, Duck, Goose Weight: Approx. 2201g / 77.6oz Product Size: Approx. 37x24.7cm / 14.6x9.7in After Opening The Coop Door Size: Approx. 28.5x20.5cm / 11.2x8.1in Controller Product Size: Approx. 11.2x10.2x3.5cm / 4.4x4.0x1.4in, Including Hook Height: 11.6cm / 4.6in Hook Hole Diameter Size: Approx. 12x11mm / 0.5x0.4in Controller Battery (Shipped Without Battery): AA Dry Battery Or 3 x LR06 Alkaline Model Battery Solar Panel Battery (Shipped With Built In Battery): Lithium Ion Battery, 1200MAH Power Supply: Either AA Battery Or Solar Panel Power Supply