1Stable Output: The socket of our tattoo power supply machine is a copper socket, which can provide stable output and sensitive contact, I believe you will be satisfied. 2Accurate Debugging: The system adjustable voltage of our tattoo power supply is 2.218.8V, so it can be accurately debugged, and the power supply can be adjusted by turning the knob. 3Material: Our mini tattoo power supply is made of cold rolled steel polished metal material, this shell is very advanced, durable and long service life. 4Direct Observation: Our tattoo power tool has an LCD screen, so you can visually observe the voltage size, which is convenient for the tattoo artist to find the appropriate voltage operation. 5Applicable: The voltage of our digital tattoo power supply is input voltage, which is universal in the world. All kinds of tattoo machines are suitable for this power supply.