Feature light Design: The Ultimate Automatic Door For Every Chicken Breeder This Automatic Chicken House Door Opener Will Surprise You With Its Waterproof Function Sturdy Design Light Sensor Simple User Interface And Most Importantly Light Sensor To Make You Feel Free To Range At Night And During The Day. easy To Use: It Takes No More Than 10 Minutes To Install The Door (no Complicated Wiring Or Wiring Required). Easy To Program Buttons. It Turns On Automatically In The Morning And Turns Off Automatically At Night. You Can Set A Timer Or Use An Integrated (lux) Light Sensor. battery Powered: At Least 3 Years Of Battery Life Can Be Used Under All Conditionsneed 3 Aa Batteriesno Included rugged And Durable: Suitable For Extreme Weather-waterproof; Will Work In -15f To 140f (-26c To 60c) Snow Rain And Dusts And Withstand High And Low Temperatures. easy To Operate: Means That Your Door Will Work On Its Own When The Sun Rises And Close When The Sun Goes Down. If Necessary You Can Use The Test Button To Set An Open Timer. material: Plastic color: Brown size: 35 X 24 X 3.7cm batteries: Need 3 Aa Batteriesno Included products List: 1 X Chicken Coop Doorno Included Batteries