Constant Voltage 12V DC Rainproof Design, AC input Voltage range: 187-260V, TC:85ºC TA:50ºC, Built-in fan cooling method, Built-in EMI filter, 100% full load burn-in test, Alumium Extrusion Case, Excellent heat-dissipating , IP53 for Indoor and Outdoor Installation, Suitable for LED Lighting, LED Sign Board, LED Strip, Acrylic Signage, Moving sing application, High efficiency and low opration temperature, with Over load/short circuit Protections, Safety Standards: CE, RoHS, BIS