Tattoo Power Supplies - Mini Tattoo Power Supply 

ShellTop: SteelTop: Polished SteelBottom: AluminiumBottom: BlackPower Supply Size :60mm X 82mm X 60mmAdapter Size:95mmx53mmx30mmInput Voltage: 100-240V AC 50/60HzOutput Power: 30WOutput Voltage: 1~15V(adjustment)DC 15V 2AOverload Voltage Protection: 120%minOverload Current Protection: 120%minRating Current 0-2AOutput Voltage Accuracy ±5%Operating Temperature: -10ºC~+40ºCStorage Temperature -20ºC~+85ºCRelative Humidity 5%-95%Waves/noises <100mVCertification: CCCUses Phono Jack Clip Cord and Phono Jack PedalsPower Supply weighs 235gramsPower adapter weighs 230gramsThe imitated import ten precision potentiometer is used on this power supply. Its function is to trim the output voltage from the minimum to maximum (for instance 1V to 15V).The output voltage can reach its maximum after you spin the knob 10 full circles. At that time you can not spin it again because the knob stops.The adjustment way is 1.0V, 1.1,1.2,1.3,1.4,1.5 --------15V as precisely as decimal point behind 1. The advantage is to make the electric current more accurate and easier to control the tattoo machine.Will work anywhere in the world. You just need to buy a plug adapter to fit into your countries socket configuration.Currently the Reostat is opposite. Meaning you have to turn left to gain power as opposed to Right. Do not purchase if this is going to annoy you.