... air cooling structure , stepless current adjustment ,suit for welding low carbon steel,low alloy steel,etc.3. Complete ... accessories(optional): electrode holder , earth clamp, welding cable , brush/hammer, protective mask, wooden case. ModelUnitBX1-140BX1-160BX1-180BX1-200( ... /380220/380No-load Voltage V 48 48 50 50Reted Welding current (A) A140160180200Current Range A60-14060-16060-18060 ...