... reasonable price,portable, digital current show, wide adjustable output curre SpecificationsDC Inverter MMA welding machine ParametersModelARC-160ARC-200SARC-250SRated ... . Easy to initiate arc, low noise during welding, less spray.3. Widely adjustable output current range, ... current, and strong in resisting disturbance. Can preset welding current according to needs.5. Protection design for over ...