Adopts switching power supply structure designed, 300KHz frequency of main control chip of the switching power supply, also with overcurrent and over-temperature protections functions, and up to 92% chip efficiency. With LED working it will light up when the output keep normal. The electronic components are protected by shielding, and the output line equipped with magnetic-ring, which greatly reduces electromagnetic and ensures the normal of the receiver. It has the protections function of preventing the polarities of power supply from being reversed, if power supply reversed accidentally, UBEC will not be damaged. Small size and lightweight; 5V/6V output can be switched!