Input: DC 4V to 40V ( input voltage should be 1.5V higher than the output voltage)
Output: DC 1.25V to 37V voltage is continuously adjustable
Updated Version: with reverse voltage protection, over-temperature and short-circuit protection, thus making it much safer to use
High conversion efficiency, simple regulating operation, rotate the top screw of the potentiometer clockwise to boost, anti-clockwise to reduce voltage.
100% SATISFACTION SERVICE: If there is any problem with our products, please feel free to contact us. you can request a refund for any single module and no need to return it.; Any problems you can contact us and we will try our best to resolve it until you satisfied.
Input Voltage: DC 4-40V, error ±0.1V( note: digital display does not work when the input voltage is under 4v)
Output Voltage: DC 1.25V - 37V
Output Current: 3A(MAX) It is recommended to use under 2A (NOTE: When using high power, add a heat sink to the power supply chip)
Built in over-temperature protection function
Built-in current limit function
Built-in output short-circuit protection function
How to use
1.Press the button in a short time( 1 second) so that “in” LED light, the voltmeter shows the value of the input voltage
2. Press the button in a short time( 1 second) again so that “out” LED light, the voltmeter shows the value of the output voltage
3. Rotate the top screw of the potentiometer clockwise to boost the value of the output voltage, anti-clockwise to reduce it.
4.long press the button between 1 and 4 seconds to turn off the voltmeter.
How to adjust the accuracy of input/output voltage
(for the person who needs a highly accurate value of number）
1.long press the button for more than 4 seconds, then release, voltmeter and “in” LED flash in synchronization entering into the input voltage calibration mode.
2.Press the button in a short time( 1 second) to adjust the value(range from -0.5~0.5v, positive means to rises units, negative means to minus units)( Due to a unit is less than 0.1V, so you have to continuously press 1 to 5 times to see the voltmeter change 0.1V)
3.long press the button for more than 2 seconds and then release to enter the output voltage calibration mode.
4. After calibration, long press the button for more than 2 seconds all parameters will be saved automatically and back to the voltage display.