DC Power Supply, DC/DC Converter, Pure Sine Wave Inverter manufacturer / supplier in China, offering High Efficiency 480W DC to DC Step Down Buck Power Supply Dcdc Converter 36V to 24V 15A 20A, 30V~60V 36V 40V 42V 48V 50V CE RoHS DC-DC Converter 48V to 24V 20A 30A Step Down Power Supply, 10A 400A 20V 200A 25V 160A 40V 100A 50V 80A 80V 50A 1000V 4A 4000W Variable DC Power Supply and so on.