600W 25A DC-DC 12-75V to 5V 19V 21V 24V 48V Adjustable Step Down Power Supply Module Adjustable Voltage Buck Converter with Fan.
 
Description:
1.  Use high-quality materials, durable
2.  Delicate and compact appearance
3.  Easy to use
4.  Stable performance
5.  Wide application range

Parameters:
Name: DC-DC adjustable step-down module
Input: 12-75V
Output: 2-5-50V adjustable
Current: 25A (MAX)
Efficiency: 95% maximum (the lower the pressure difference, the higher the efficiency)

Wiring: The wiring shall be as thick as possible under high-power conditions.

Voltage conversion list:
12-75V to 5V
12-75V to 9V
14-75V to 12V
17-75V to 14.8V
19-75V to 16.8V
22-75V to 1 9V
24-75V to 21V
28-75V to 24V
35-75V to 30V
41-75V to 36V
48-75V to 42V
55-75V to 48V

IN+: input positive
VADJ: output voltage regulation
0UT+: output positive
IN -: input negative pole clockwise large anticlockwise small
OUT -: output negative