1,Digital display,2T/4T trigger.AC/DC,current can be adjusted by pedal control 2, be able to weld carbon steel,stainless steel, copper, titanium and non-ferrous metal with DC TIG,aluminum alloy welding is available by AC function 3,small size,light weight,low noise Item\ ModelTIP200PAC/DC Input power voltage (V,Hz) FrequencyAC220(single phase) ±15%,50/60 Rate input power capacity(KVA)4.5 No-load voltage(V)56 Output current range(A)5-200 Rated output voltage(V)18 Duty cycle(%)60 No-load power(W)40Arc-startingHF Efficiency(%)85 Power factor COSφ0.93 Insulation classF Weight(KG)20 Overall dimension(mm)493×330×320Protection class of caseIP23 Post gas(S)1-10 Pulse frequency(Hz)0.5-300 Down-slope time0-10 Basic current (%)10-90