DC-DC Adjustable Step-down Buck Converter XL4015 4A - with voltage meter

A step-down converter with a handy built-in voltmeter for both the input voltage and the output voltage.

Working voltage meter:

• Left button (on "IN" side): Turning the voltmeter on and off
• Right button (on "OUT" side): Perform voltage measurement on input voltage or output voltage.
• LEDs at IN and OUT: indicate which voltage is being measured at that moment.
• The voltage is indicated with a decimal point.
• Accuracy: ±0.2V (factory specification)
• Can only be used for a long time with an input voltage of 15V or lower.Above 15V, we recommend using the voltmeter for less than one minute.

Note: The potentiometer is several turns. So it may take a while before your will have reached the desired voltage. The potentiometer can rotate about 25x from start to finish