1、LCD display can display input and output voltage, output current, output power, output capacity and output time, with accurate readings 2、The input terminal has protection against reverse connection, and the reverse connection will not be burnt, and the service life is long 3、The output terminal has anti‑backflow function, no need to add anti‑backflow diode when charging the battery 4、High quality material can make sure the durability and stability of the product 5、Simple structure and professional design, the operation panel is easy to use with stable performance Item Type: Buck Boost Converter Material: Plastic Model: WZ3605E Output Current: 5A Output Power: 80 (W) Output Switch Setting: In the off state, short press the start button to turn on the output. In the open state, short press the start button to close the output M1 and M2 Data Groups are Quickly Recalled: In the main interface, long press V/△, data group 1 can be recalled, and the number of the data group that has been recalled will be displayed at the bottom of the status bar of the colleague's screen. In data group 1, long press V/△ to return to data group M0. In the same way, long press A/▽ to perform corresponding operations, and the M3-M9 data group needs to be called and set in the data group setting interface. System Zero Calibration: In the main interface, there is a small current, long press the rotary encoder, you can calibrate the output of the small current. Interface Switching: When no setting is selected, the rotary encoder performs menu switching 1 x Buck Boost Converter