The EMAX EMX-AC-1215 is a DC-DC Buck-Boost Converter, designed to provide steady, reliable power for a wide range of applications. It has a max output power of 12W, a wide input voltage range of 4.5V to 26V, and a wide output voltage range of 3.3V to 25V. It features an adjustable output voltage, a built in Constant Current/Constant Voltage mode selector switch, and an output current limit of up to 1.5A. The EMX-AC-1215 also features reverse polarity protection, over temperature and over current protection, and soft start features, making it an ideal choice for many applications in need of reliable DC power.