【UPGRADE SOLDERING IRON】The 100W soldering iron uses a high-power, advanced plug-in ceramic heating core that heats up quickly in 15 seconds, allowing you to work faster. Its temperature calibration function also ensures accurate and reliable temperature control. The pen-style iron is also portable and easy to carry. 【LED TEMP DISPLAY】The digital soldering kit with LED display provides precise temperature control that allows you to adjust the temperature range from 180℃-500℃ / 356℉-932℉. It also displays two temperature units so you can switch between °C and °F at any time. 【EFFICIENT HEAT DISSIPATION】 Four ventilation holes on the solder iron help dissipate heat quickly. The soldering iron features an upgraded steel tube design for better heat dissipation to get a long cool handle. 【WIDELY APPLICATION】This soldering iron kit is widely used for PCB welding, equipment maintenance, circuit boards welding, craft welding, DIY, computer, home appliances, and phone repair. It's great for beginners, welders, and anyone who needs a reliable tool. Excellent Gifts for Fathers Day! 【PASSWORD(CHILD LOCK)SETTING】 Advanced soldering gun can set password lock, which is easy to use for adults, but almost impossible for children. It helps to prevent children or pets from accidentally touching it. Please refer to the manual for specific operation.