DC Power Supply, DC/DC Converter, Pure Sine Wave Inverter manufacturer / supplier in China, offering IP67 AC DC Buck Converter 24VAC to 5VDC Step Down Converter AC to DC 1A 2A 3A 5A Power Supply, DC DC Stabilizer 9V-36V to 13.8V Boost Buck Converter 20A 276W Waterproof Automatic Voltage Regulator Auto Step up Down 13.8V Volt Transformer Module, 8-40V to 24V 3A 5A 6A 8A 10A 15A DC Voltage Regulator 24VDC Stabilizer Auto Step up Down Boost Buck 24 Volt DC Converter and so on.