So you should know how to adjust the voltage on the tattoo power supply for a smooth work. The first you should do is to plug in your tattoo power supply. Always wear gloves when tattooing to help keep your work area clean. The next to turn the voltage knob on the front of your power supply counterclockwise until it is at its lowest setting. And then turn on the power button located on the back of the power supply unit. The last step is to adjust the voltage level by turning the voltage knob clockwise for more power and counterclockwise for less.
Honestly speaking, adjust the voltage of the tattoo power supply is a easy thing. And it is also very important thing for the users to work. because if the tattoo power supply could not work the tattooing can not been completed.