Tattoo Power Supply Portable Mini Voltage adjust: Turn up clockwise, otherwise, turn down, per 0.1v+/-. Stainless-steel, Tatouage power-supply foot-switch pedal. Foot pedal mode: Working under switch(light off) or continuous (light on) modes by pressing the voltage button. Power Supply Overvoltage Protecting. Package Include 1 x Tattoo Machine Power Supply, 1 x Power Plug (fit for your countries).