The Arena power supply output voltage 0-18V,0.1V adjustment increments. Enjoy 360? degree rotational abilities on the LCD white display screen.3mm thick magnetic can be adsorbed on the iron workben and compatible with all kinds traditional coil machines and rotary machines. Specifications: Input Voltage: AC100-240V 50-60HZ Output Voltage: 0-18V 3.4A Size: 65*60*40mm Weight: 259g Material: Zinc Alloy