This environmentally sealed DC-DC power supply is designed to meet harsh, military environments. It complies with the input voltage requirements of MIL-STD-1275E. It is compact in size, weighs 4.5 lbs, and is natural convection cooled. At ACT, we can also handle custom spec requests and will be happy to design a power supply for a specific application. Submit a product request and let us know what your specification needs are.