Outdoor Protection: IP65/IP54, Waterproof, 4-5mm AR Tempered Glass, Vandal Proof Metal material bending welding forming Brightness Management Brightness Control: Automatic Brightness Control (with light brightness sensor), changing with sunlight strong or weak. Temperature Management Working temperature： -10 to 50 centigrade Storage temperature: -20 to 60 centigrade Working humidity: 10%-85% Storage humidity: 5%-90% Temperature Control: Start Air conditioning （fan to wall product） cooling automatically, upon its internal temperature over 35°; Cooling stop upon its temperature below 30°(28°to wall product), air supply device still works. If it internal temperature over 60°, it'll reduce brightness or turn off back light automatically, so as to lower temperature. http://www.aomaktouch.com