ITEM NAME:DC / DC Converter Regulator 12V Step Down to 5V 3A 15W Car LED Display Powe H4S5 DC / DC Converter Regulator 12V Step Down to 5V 3A 15W Car LED Display Powe H4S5 Synchronous rectification, very low heat. With overload/over-current/over temperature/short circuit protection. Can work in normal.Output: DC5V 3A, 15W. Input: DC 12V. With overload/over-current/over temperature/short circuit protection. Compact design, high efficiency, easy installation and use. Synchronous rectification, very low heat.