Easy to use: easy to program buttons. It turns on automatically in the morning and off at night. You can set a timer or use the built-in light sensor (LUX). Works with 3 AA batteries, can be replaced in 3 minutes without solar panel. Plug and play technology: the door can be installed in less than 10 minutes (no complicated wiring or cabling required). Work in extreme weather conditions: waterproof, works in snow, rain and dust - 26°C to 60°C (-15°F to 140°F). All-in-one design - Made from a single casting: solid aluminum door and slider. High quality fine varnish with powder coating (for outdoor use). Product description Description: Automatic light-sensitive chicken coop door for pets. Material: brown plastic Dimensions: 35 x 24 x 3.7 cm Dimensions: 35 x 24 x 3.7 cm - Inner box: 25 x 5 x 36 cm Product weight: 400 g / 480 g with cardboard inside. Powered by 3 AA batteries. Magnet: Motor contains magnetism. Function: Light sensor (bright light to open the door, dark light to close the