MultiSource Power Support The ZTN1 can be powered through multiple sources, including USB connections, making it suitable for both indoor and outdoor use. Automatic Energy Saving Feature The automatic sensing feature puts the soldering iron into sleep mode when not in use, reducing energy consumption. It quickly heats back up when lifted, improving safety and efficiency during work. Heat Resistance Materials Constructed with grade insulation materials that withstand extreme temperatures, this tool minimizes burn risks while delivering reliable performance during all your soldering needs. Use scenarios Home and hobbies: connect to a USB power source or power bank for convenient soldering at a desk or bench without relying on a dedicated mains outlet. Onsite electronics maintenance: field service or outdoor work with portable USB power supplies, enabling soldering in locations without traditional power access. Delicate component work: the sleep mode reduces risk of accidental burns when paused between tasks, while the quick heatup ensures fast readiness when you resume soldering.