Tekpower HY-1502 DC Power Supply, 1.5 - 15 Volts @ 2 Amp
The Tekpower HY1502 DC regulated power supply is designed and engineered for tattoo machines. It has a fixed current output at 2 amps, you can control the speed by adjusting the voltage from 1.5 volts to 15 volts, the higher the voltage, the higher the speed.