Input for two machines - plug them both in and toggle between the two without having to plug them in and out! Advanced digital micro-processor controlled unit. Choice of voltage increments: .1v, .2v, .5v Precision regulated voltage output 0-18v 2.3 amp Overload protection built in. Liner and shader presets with 10 moemory settings - Remembers 5 shader settings and 5 liner settings - Just plug your machine in, choose your preset settings, and go! Non volatile memory (holds time and presets even when power is removed) Universal input 110-240vac 50/60hz (comes with US plug so plug adaptor is needed, but transformer is not required) LCD Display with volts, speed, and follow through. Specifications Input Volt:100-240Vac 50/60Hz Input Volt Range:90—264Vac 50/60Hz Input Current:0.5Amax Output Volt Range: 0-18Vdc ±2%(can be set as need within the range Output Current: 1.5A -2A(max) Case Material: Aluminum Size: L10cm*W7.0cm*H2.5cm Net Weight: 1150g 4,Attentions (1) Please use the machine within the voltage range, if it does not work, please check the input and output powerline collection.