Features: Auto sleep function: the soldering iron will be sleep mode when in idle (idle time could be set within 1-30 mins). Shut off automatically: the soldering iron shuts off automatically, you can press the knob to restart the soldering iron. Preset temperature function: you can set a frequently used temperature and time, so when in working mode, just press the knob then it will heat up to this preset temperature quickly. Portable: mini controller, light weight and compact design, it is convenient to carry to where you need to do soldering work. Heat up quickly: the soldering iron uses K integrated tips, it heats up in seconds, perfect for heavy duty soldering applications, such as battery and solar panel soldering, big joint. made from metal, plastics and lead-free soldering station, with high hardness, practical. Adjustable temperature: adjustable temperature at the range of 200~480. Specifications: Main material: metal+plastics+lead-free soldering station Soldering station: Display size: 0.96 inch Temperature range: 200~480 Input power: 24V 3A (72W) Sleep time setting range: 1-30 minutes Time of melt tin: 8s