The Weller® WP 120 High-Power soldering pencil offers twice as much power and efficiency in a small and ergonomic pencil design. Combining a compact, powerful heating element with a replaceable soldering tip the WP 120 soldering pencil guarantees dynamc performance and best life cycle costs. The rapid transfer of heat into the soldering tip is quickly and precisely controlled with sophisticated electronics which allows the WP 120's compact design to cope with big and difficult solder joints even when they are barely accessible.