The welding current is large and there is no need to worry about thick and thin nickel strips. In the actual test of the product, there is no problem at spot welding 0.1-0.3mm nickel plating. It can weld 0.2mm pure nickel. The heat is not obvious after multiple consecutive spot welds. The welding power is adjustable in 1-120 levels capacitor spot welding machine is simple to use and easy to get started. With my help, a novice can become a spot welding master in seconds. The board comes with constant current and constant voltage charging and capacitor balancing functions Portable handheld, spot welded wherever you go. Humanized handheld design, compact and easy to carry with you Detachable and replaceable welding pen, other welding pens can be replaced later Digital display control, parameters are intuitively visible, temperature monitoring and high temperature reminder functions, capacitor voltage display, clear at a glance Name: Capacitor Spot Welder Soldering Pen:Detachable and replaceable soldering pen Input power supply voltage: DC12V4a Use temperature range: 0 ~ +75 capacitance capacity: single 2.7v3000F Welding thickness: 0.2mm pure nickel, 0.3mm nickel-plated, 0.4mm nickel-plated Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:Black Material:ABS Voltage: AC110-240V Package Contents: 1 x Spot Welder 4 x Spot Welding Pins 1 x Nickel Tape 1 x File 2 x Soldering Pens 1 Supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.