When you use the product, the module inputs and outputs to be isolated from ground.
USB output voltage is consistent with the module, not a fixed 5V output. When charging for digital equipment, make sure USB output voltage is 5V.
When you encounter this problem the module can not adjust the output voltage is always equal to the input voltage, please counterclockwise rotation of the “voltage potentiometer” 10 laps or more, then use the module you can adjust the output voltage. Because the factory default output voltage of about 20V.
Specification:
Highlights :Contains the voltmeter, ammeter, power meter, USB interface for charging the digital products
Input voltage range:5-36V DC
Output voltage range:1.25-32V DC adjustable
Output current: 0-5A
Output power: 75W
High efficiency up to 96%
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
Input reverse polarity protection: None (if required, high current diode in series with the input).
Size:6.8x3.8x1cm(LxWxH)
Application:Use as a step-down modules with overcurrent protection
