Proskit SI-168U USB Powered Soldering Iron 5V USB Electric Soldering Iron Pen Welding Gun Solder Soldering Tips Kit This is a fully functional USB powered soldering iron brings you more convenient. Compact and slim for portability with rapid heat up and instant recovery. USB powered easy for on-the-go use Fast Heating up in less than 15 seconds, cooling down in less than 30 seconds. Auto sleep mode for power saving and prolonging the lifetime of heater. Low power consumption 8W and high temperature reach to 480C Replaceable long life tip for greater efficiency and long service life (Replaceable tip:9SI-B162-T) Metal touch switch control provides fast heating response. Working indicator to avoid accide