1: This module uses high-performance electronic components, and the overall performance is more stable 2: Wide input and output voltage range, high output current and high power 3: Input low voltage protection (turn off the output when the input voltage is lower than 20v) 4: Output constant voltage and constant current, voltage and current are continuously adjustable. 5: There is an output current test point, and the output current setting value can be tested with the multimeter mv gear<br><br>There is an external voltage and current analog signal input terminal, and the voltage and current can be adjusted by the microcontroller control. There is an external output switch signal terminal, which is a standby switch after short-circuiting. The input terminal MOs tube has a reverse connection protection function, and the input terminal is connected to the negative pole without burning out. Intelligent temperature control fan, the module temperature rises to start the fan about 55 degrees, and the module temperature to turn off the fan about 50 degrees. Colour:As Shown Material:ABS<br><br>Package Contents: 1 * DC-DC step-down module<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.