Features: Minimized; portable Energy-saving Excellent HF arc-starting Stable arc; Reduced spatter Deep welding penetration Even & smooth welded surface Automatical protections against over-voltage and over-current Suitable for welding thin plate Specifications: Item TIG160 TIG200 TIG300 Input voltage(v) 220V, 50/60Hz 220V, 50/60Hz 220V, 50/60Hz Rated input power(KVA) 3.2 4.5 8.3 No-load voltage(V) 43 43 42 Output current range(A) 10-160 10-200 20-300 Rated output voltage(v) 18 22 Duty cycle(%) 60 60 60 Efficiency(%) 85 85 85 Welding thickness(mm) 0.3-5 0.3-8 0.5-12 Protection class IP21 IP21 IP21 Packing size(cm) 45x26.5x31.5 45x26.5x31.5 45.5x24.5x38 Weight(kg) 8 8 21.5