Easy to use: Turns on automatically in the morning and off in the evening. You can use the built-in light sensor. Requires 3 AA batteries, replaceable in 3 minutes without a solar panel (package not included). Plug and play technology: The door is installed in 10 minutes (no complicated wiring required). Works even in extreme weather conditions: IP44 waterproof. One-piece design: Solid PP plastic and slider. High-quality powder-coated finish (suitable for outdoor use). Color: Red. Dimensions: 35 x 24 x 3.7 cm. Note: This product is an improved version made of reinforced PP plastic. The goal is to make it easier for small animals to get in and out and reduce braking effort! The second reason is energy savings and a longer service life.