Product Description 100W Soldering Iron with Digital Temperature Control, Automatic Sleep Mode, and Built-in Ceramic Heating for Electronic Soldering 1) The 927 soldering iron features adjustable and constant temperature functions, equipped with an on/off button and an LCD display. It can switch between Celsius (180-480°C) and Fahrenheit (356-896°C), and also allows setting a sleep time and manual temperature adjustment. 2) The soldering iron has 4 built-in heating wires and uses PID (Proportional-Integral-Derivative) technology for temperature control and adjustment. A temperature sensor provides accurate temperature and heat output in a timely manner. 3) The soldering tip uses a 90W built-in ceramic heating element, which can heat to working temperature within 20 seconds. The heat-resistant screw tip effectively isolates the heat, thus extending the handle's cooling time. 4) This advanced professional soldering iron comes with 5 replaceable soldering tips. The threads are designed for heat resistance and impact resistance, preventing the tips from falling off. 5) This soldering iron set includes an LCD display soldering iron, 5 different soldering tips, solder wire, and a soldering iron stand. This soldering practice kit can be used for pyrography, engraving, etc. Model: HANDSKIT-927 (90W) Sleep Mode: Automatic sleep after 15 minutes Voltage: AC (110V/220V) Temperature Range: 180~480℃ Temperature Stability: ±2℃ Temperature Deviation Range: ±99℃ Temperature Unit: ℃ Heater: Four-core PTC ceramic heater Display: Blue LED Net Weight: 140g