[Light Sensing] This chicken coop automatic door comes with a control box to realize time and light control. By sensing changes in sunlight, light sensors can open doors at dawn and close them at dusk. DurableThe automatic chicken coop door is resistant to high and low temperature, as is the battery. Because the battery is housed in a waterproof case, it can be kept outdoors in cold or warm weather and will last for a year.Battery powered3 AA batteries, can be replaced in 3 minutes without solar battery (not included in package)Wide UseAutomatic chicken coop door openers are widely used indoors or outdoors, including farms and ranches. They can accommodate chickens, ducks, geese and other livestock. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin