Features: Strong Power: The power of this spots welding tool can reach to 5000W, which can provide strong power and improve your work efficiency. Digital tube display design, you can monitor the remaining battery power at anytime. 10 level output power knob adjust design, you can adjust the output power by turn the knob, the larger the value, the higher the output. There are ten levels for you to adjust. This sopts welding machine is suitable for sopts welding 18650/26650/32650 and other batteries, mobilephone battery welding to nickel, the spots welding thickness is 0.1~0.15mm. Easy to Operate: You can put the two welding pens on the nickel sheet, then press the pedal for the red light flashes 3 times quickly so it will output the current to complete the welding. Specifications: Material: ABS+metal Adapter: EUPlug, USA Plug (optional) Voltage: 100~240V 50/60Hz Working temperature: 10~65 Output power: 5000W Battery: 1 * lithium battery, 4000mAh (included)