3: Input low voltage protection (turn off the output when the input voltage is lower than 20v) 1: This module uses high-performance electronic components, and the overall performance is more stable 4: Output constant voltage and constant current, voltage and current are continuously adjustable. 2: Wide input and output voltage range, high output current and high power 5: There is an output current test point, and the output current setting value can be tested with the multimeter mv gear, Weight: 1.322773572 pounds, Manufacturer: susaa