XL4015 5A High power 75W DC-DC adjustable step-down module+LED Voltmeter Power supply module

Module Highlights:

- 5A power high-efficiency step-down low ripple!

- with power indicator light!

- onboard voltage meter, voltage meter can self-calibration, will never exist without accurate voltmeter problem! !

Module performance and features:

- with power indicator light

- with a voltmeter voltmeter can display and self-calibration. It uses a more advanced microprocessor voltage, voltage meter error of 0.05V , range 0 ~ 40V . (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage is 4.5V or more)

- touch of a button to switch measuring input or output voltage, and has a light show which is being measured voltages, and save the settings, even if the power is turned on again.

- voltmeter can be turned off when not needed, touch the left button can be easily achieved.

- with a terminal block, no iron can also be easy to use, and retention wire connection points.

- Input voltage 4.0 ~ 3 . 8 V . ( Input voltage must be higher than the output voltage 1.5v a...