Product Description Inverter DC Multi-Functions Welder (CT-312 CT-416 CT-O520) Main Characteristics; 1. Advanced inverter technology, reduced size and weight, easy to carry. 2. Novel and effecitive, and low cost; 3. Three functions in one machine, tig welding, mma welding and air plasma cutting 4. Compact and easy for operation. 5. 'D' Series are for 110/220 duel voltage input, automatic input voltage changing 6. Complete accessories: Welding torch, welding cable(3 m), earth clamp, welding holder, cutting torch, carton box