With 5KW powerful output, auto/manual welding modes, and 2 welding guns, VEVOR Dual Pro Stud Welder provides a complete solution for both steel and aluminum automotive panels. VEVOR dent puller welder features 10 modes, including fine-tuning repair, high point flattening, carbon rod, triangle, round, OT, wiggle wire, single-sided spot welding, stud welding, short circuit welding.