SEC America’s DC-DC Voltage Converters are designed particularly for dependable operation in harsh environments. They are DC-DC voltage converters for medium to high power applications. SEC America Corp provides DC-DC Voltage Converters that are internally encapsulated for resistance to vibration and shock. Voltage step up DC-DC converters and step down DC-DC converters are available in a wide variety of voltages in the power range of 100W to 2000W.