•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.
•Use soldering stand and other aids to avoid bur fingers.
•Don't pulled the soldering and other aids to avoid burnt fingers.
•After finish the longer life tip faceDon't file the long life tip face and Don't apply too much solder unnecessarily.