✅【Environmental lead-free soldering iron】 internal heat type soldering iron heating core, heating fast, high efficiency, low energy consumption. ✅【Three temperature adjustable】 one-button start, external running indicator, low temperature range :330℃~350℃, the indicator light is green; Medium temperature range: 370℃~400℃, the indicator light is blue; High temperature range: 430℃~450℃, the indicator is red; Meet different needs, easy to use ✅【Rapid heating, easy to tin】 Long press the switch for more than 2 seconds to open the soldering iron, rapid heating and cooling, and tin melting within 15 seconds ✅【Multiple charging methods】 Plug, computer, mobile power can be charged. It can be used after plugging in the power supply, and and the 10000mah power bank can be used for 8 hours. ✅【Wide application】It's suitable for electronic maintenance, high-precision professional components welding, home DIY welding, jewelry welding, electrical and electronic product maintenance.