SMAKN&reg; AC 110/220V DC 12V 3A 36W Switch Power Supply Switch power supply, convert AC 100V/240V to DC 12V. Wide input voltage range, steady and precise output voltage. Shortage protection, overload protection(105%-150%), over voltage protection(115%135%). Widely used as the power adapter for Led strip, LED display, billboard, industrial equipment, etc. IN-DOOR USE ONLY! Package List:1 * Voltage Transformer