DH20 PRO-MINI 9-speed Spot Welder, Nickel Pen Spot Welder, Nickel Plate, Battery 18650

9 levels of power adjustable 2A high current charging, fast charging speed, power bank USB output function (5V MAX2.4A) Upgradable firmware The soldering needle can be replaced, and the soldering pen is integrated, so that the soldering will not be hot Program update, more user-friendly operation, free 2m nickel sheet