The Hakko FX601-02 is the next generation of variable temperature-controlled soldering irons. It is ideal for soldering applications that require mobility or a long reach, such as soldering solar panels, etc. The extremely lightweight, ergonomic handpiece allows you to solder for long periods of time without hand fatigue. The soldering iron also features a convenient temperature adjustment dial in the handpiece that allows the user to select their optimal soldering temperature, and the advanced electronic controls and efficient ceramic heater provide accuracy and stability that rival older Hakko stick irons.