DIESEL ENGINE-DRIVEN DC WELDER/AC GENERATOR Further more features Welding Mode Selector Switch SAVE the fuel & maintenance cost. EASY to weld! Even beginners can do stable welding. For professionals, they can adjust welding penetration as they like. Only select your type of welding mode! The sensor automatically control the engine speed by the load capacity. HIGH/LOW: Engine speed will be idle during no operation or the load capacity is low. VARIABLE: Engine speed will be change depends on the welding Amp. Drooping characteristic mode Constant current characteristic mode Even when the arc length...