This spot welder is powered by two capacitors,controlled by high-performance MCU,and supports functions such as automatic working mode,output power adjustment, delay setting, circuit board temperature monitoring and high temperature reminder. Compared to a ac spot welder, it does not interfere with the electric circuit, which means no more problems. It is designed for professional workers and DIY enthusiasts. spot welder equipment with 120 gears output power adjustable, which can be adjusted conveniently by rotating the button(0-120 range).You can adjust the spot welding accuracy according to different needs, the more the adjustment, the more perfect the spot welding effect. The SE202 battery spot welder is equipped with two super capacitance, can easily weld 0.1-0.3mm thick sheets, you can finish the welding work easily and efficiently, the welding spot is and elegant. Can be used for spot welding of batteries, hardware, and electronic components. Different from other handheld spot welder on the market, newly designed machine will display a bar on the screen during spot weld mind you the welding process. And comes with 4 welding needles,you can detach and change the spot welder pen easily. The capacitor energy-gathered technology and low power consumption enable you to use the machine for 12 efficient welding work with no heating problems.For the first use, it needs to be for 20 minutes, and the spot welding can be done after the voltage is to more than 5V. The spot welder is mainly used in the welding of sheets of battery, which can be used for spot-welding cylindrical lithium batteries such as 18650/21650 and etc, -metal hydride /cadmium batteries and etc.It can be also used to welding -clad steel plate within0.3mm, pure sheet within 0.15mm and stainless steel belt within 0.35mm. Plug Type:US Plug,it applies to Canada, ,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage: AC100-240V Color: black Material: metal Package Contents: 1 set spot welder machine Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.