... 3:stable,protable,durable 4:Advanced inverter technolo Inverter TIG welding machine 1:AC approved 2:LCD Digit show 3:stable ... thermal arc initiation design, excellent arc initiation performance, ample welding current, super cost/performance ratio.3. Unique over ... will not damage the machine.4. Unique output characteristics design, more suitable for filter wire welding, excellent weld appearance.5 ...