1 3 Digit Red Digital Tube: The buck module with 0.36in 3 digit red digital tube, with red working power indicator 2 Counterclockwise Buck: Voltage adjustment method of this buck module is counterclockwise buck, easy to install and use 3 Reverse Connection Protection Diode: Adopt reverse connection protection diode, the reverse connection will not cause the buck module to burn out 4 Stable Voltage Diode: Buck module with stable voltage diode, which can ensure the normal operation of the display circuit 5 Fine Tuning Potentiometer: Fine tuning potentiometer, when there is a deviation between the displayed voltage and the actual, can use this potentiometer to make fine tuning
What's in the box
1 x Voltage Regulator Board
