Weller wsd 121hpt 120w soldering station set weller t0052919399 the weller wp120 high power soldering iron offers high power and efficiency in a small and ergonomic pencil design combining a compact powerful heating element with a replaceable soldering tip the wp120 guarantees low life cycle cost and high performancethe rapid transfer of heat into the soldering tip is quickly and precisely controlled by sophisticated electronics allowing the wp120 to cope with both big and difficult sold