Inverter Air Plasma Cutter Welder & Digital Display&pressure Gauge Power supply voltage: Single phase 110/22010%; Power supply Capacity: 5.5KVA;Efficiency: 85%. No-load voltage: 220V; Current range: 10-50A; Duty cycle(%): 60; Cutting thickness: 1-14MM. Arc striking: contact; Power factor: 0.93; Protection class: IP21; Insulation class: F. Feature: Stabilizing, Lightness, Save-energy,no noise, High cutting speed, no polish demands. 3 years warranty.