User-friendly Design: It adopts 3.5-inch TFT LCD screen with rich display contents and supports Chinese and English display; The operation process is simple and convenient, and with visual interface display system, it is easy to get started. Key lock function to prevent misoperation; High-performance load: It provides CC, CV, CR, CP and CC+CV, CR+CV several basic measurement modes; It provides professional battery test; It provides professional LED test; The Tran test mode can test the dynamic output performance of the power supply; The scan test mode can test the continuity of power output within a certain range; Support 4-wire measurement; The list test mode can simulate a variety of loading status changes; The short circuit test can be used to simulate load short circuit; Support external trigger input; Built-in buzzer alarm; Maintain data storage in case of power failure; Remote operation via USB, RS-232or 485 (optional) interfaces; Multiple safety protection: It provides overcurrent, overvoltage, overpower, over temperature protection. The overvoltage and overcurrent parameters can be set flexibly, so as to effectively protect the load; It has intelligent fan speed control function, which can effectively reduce the fan noise when it is working. With input polarity reverse prompt;