Instant purchase and price reduction are possible ✨ Even for new products, we may open the package once to check for any damage. Thank you for your understanding. Please refer to the photos. #Indicator #LED #PowerSupply What is a #DC-DC power module? A DC-DC power module is a type of power module that converts a DC voltage to a different DC voltage. It incorporates the DC/DC #converter IC and components like #capacitors and coils necessary for a power circuit into a single package. This product is a 180 KHz fixed frequency PWM step-down (buck) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation. The module has a voltmeter to display input and output voltages, and you can correct the voltage with a button to improve the accuracy of the voltmeter.