This is a portable electric soldering iron with compact pen shape and pluggable tip installing design whch only has 177mm long convenient to use. It has 65W high power output and fast heating speed to reach the set temperature only in few seconds. 220-400 celsius adjustable temperature range with marked knob to regulate easy to operationIt is equipped with DC5.5*2.5 power jack with DC12V-24V low voltage input which can be powered by lithium battery or laptop power supply directly, safe and easy to use. There are 7 type soldering iron tips can be selected to meet your different soldering repair work.