Description: Professional Soldering Tool is great for -free soldering semiconductors High quality long lasting ceramic type heater. Adjustable temperature controlled soldering irons: 200-450 ° C. Suitable for hobbies, kits, radios, and electronics work. Iron plated tip and stainless steel construction offer longer steel construction offer longer life. Specification: Material: Iron plated tip and stainless steel+Silicone Plastic Handle Power: 8W Working voltage: 5V Plug type: USB Soldering iron length: 16.5cm/6.5inch Handle Base Width: 1.5cm/0.6inch Color: As the pictures shown Package Includes: 1Piece USB Electric Soldering Iron Note: When the soldering iron is plugged in for the first time, there comes out a smoke from the tip end. The smoke stops in a smoke while and a smoke never comes out again After finish the longer life tip face. Use soldering stand and other aids to avoid burnt fingers. Don't pull the soldering iron tip outward and use it in that way, which will shorten the heating element life. Don't file the long life tip face and Don't apply too much solder unnecessarily.