ARC200i is an intelligent stick and tig welder with an added synergic stick function to assist the welder to set the machine to the correct weld settings for the different diameters of electrodes. A range of setting is preprogrammed per electrode size. Simply select the electrode size and it will give you the minimum and maximum amperage range for the the electrode diameter. This unit also offers Lift arc TIG and VRD as a safety feature. Arc controls include hotsart for easy arc strikes as well as arcforce to prevent the electrode from sticking during welding. The bright green LED display make the settings easily visible in lowlight work areas.