INTEGRATED POWER SWITCH:LXT soldering iron kit has an integrated power switch,which is more energy-saving,safe to operate and use,and does not need to be plugged and unplugged frequently every time. EASY TO USE:When the hand saker soldering iron kit is used for the first time,it must be preheated for a few minutes.It is normal to have smoke,and it will disappear in tens of seconds. Straighten the rated tin wire,press the tin inlet,and insert it from the tin inlet until it contacts the soldering head,until it touches the soldering iron head,stop threading until the tin wire is sent to the tin guide pipe mouth,and then pull the trigger to work normally. ONE-HANDED OPERATION:LXT soldering iron kit feeds the Welding wire through a stepper motor,allowing you to solder effortlessly with one hand Without feeding solder with the other hand,When it is necessary to withdraw or replace the tin wire when it is stopped,just push the plate direction upwards and take out the tin wire at the same time. WIDE USED:LXT soldering iron kit Widely used for welding circuit board,appliance repair,jewelry and metal headdress making,computer,and DIY.Very suitable for beginners,welders,basic household equipment,welding engineer training,etc. WHAT YOU GET- 1 x solder gun, 1 x soldering wire