Features:3000 Farad supercapacitors, which makes it become a useful spots welding tool for welding nickel sheets.Four supercurrent mos tubes, high power, which makes it can provides stable performances while long time operation.120 gears of powers adjustable design, the welding process is more accurate and the welding effect is more perfect.Equipped with LCD display, the delay, power and voltage can be displayed clearly, you can read it at a glance.Detachable welding pen nib, easy to change welding pen at any time.Handle design for easy carrying.Perfect for welding 0.2mm purenickel sheet, 0.3mm nickel plated sheet and 0.4mm stainless steel sheet.