Universal Input: 100-240V AC; Output: 12V DC 37.5A.Suggestion: The power used should not exceed 80% of the power of the switching 12v power supply 12v led power supply Widely used in Industrial automation, LED display, Computer Project, LED Strip Lights etc. Circuit Short Protection, Overload Protection and Over Voltage Protection Ensures the Safety of Using This Power Supply Metal Enclosed Body is good for Heat Dissipation which Can Prolong the Lifespan of the Power Supply Dual input voltage: AC 110V/220V. There is a switch, choose the proper voltage before use. Please set the switch to 110V for USA.