We are offering tig welding machinebd0901bd0902bd0903 dc inverter tig welderfeaturesespecially for welding stainless steel. light weight and easy to carry. smooth and beautiful welding appearance. mainly for home use. specification item bd0901 bd0902 bd0903power voltage(v) 115230 230 230frequency(hz) 5060 5060 5060rated input current(a) 12 16 20no-load voltage(v) 80 80 80output current adjustable range(a) 5-85 5-120 5-140rated duty cycle(%) 85@25 120@15 140@10efficiency(%) 75 83 83insulation class h h hprotection class ip21 ip21 ip21power factor 0.9 0.9 0.9weight(kg) 7 7 7measurement(mm) 365230330 365230330 365230330.