... Reactive power correction, IGBT, AC/DC or pulse output , soft switch, inverter with 100 kHz high frequency;3. Compact structure, stable ... protection, over-current protection, under-voltage protection, pedal control interface for safe operation;7. Complete accessories: welding torch ... FrequencyEfficiency≥80%Max. Welding Thickness0.2in. (6mm)0.3in. (8mm)0.4in. (10mm)Max. Cutting Thickness0.5in. ( ...