Feature: 1. Voltage: The tattoo power supply host has an LED display that displays the current voltage in real time. The adjustable voltage is 3-12V, the adjustment accuracy is 0.1V, and the voltage can be adjusted by rotating the adjustment button. 2. Universal: Tattoo battery has 100-240V input voltage, universal in the world, and compatible with all tattoo coil machines and rotary tattoo machines, providing stronger power. 3. Material: The shell of our tattoo power supply is made of ABS, which is light in weight, anti static, convenient and safe to use, durable, and has a long service life and can be used for a long time. 4. Mode: There are 2 pedal modes, one requires pedal control, and the other requires no pedal control. Short press the voltage adjustment button, and the machine can continue to run. 5. Design: The movement of our tattoo power supply set is strong and does not heat up for a long time. At the same time, its blue LED is fashionable and individual, creating a new element of tattoo style. Specification: Item Type: Tattoo power supply Material: ABS, electronic components Input Voltage: AC 100-240V 50/60Hz System Adjustable Voltage: 3-12V, adjustment accuracy 0.1V Power Host Size: Approx. 75 x 75 x 45mm / 3 x 3 x 1.8in Characteristics: 2 seconds boot, 0.1V precise adjustment, built in short circuit protection, cool breathing light, support 2 working modes, pedal and no pedal Voltage Adjustment Method: Rotary adjustment. Package List: 1 x Tattoo Power Supply1 x Adapter