[With Colored LCD Screen] Our mini spot welder is equipped with a visible color LCD screen, so you can see clearly about the remaining battery, delay time, temperature and the gear of the spot welder. It improve your work efficiency. [30 Gears Adjustable] This DIY battery spot welder has 30 levels of adjustable output power, which can meet your different needs. It is accurate to weld and easy to operate. [5000mAh Rechargeable Battery] With built-in 5000mAh rechargeable polymer lithium battery and a type-C charging cable, this product is fast fully within 3 hours. It can also be used as a power bank to charge your phone. [Safe to Use] With good conductivity, strong torsion resistance and low contact resistance, this product is safe to use. The mini and portable design is convenient to carry around. [Widely Uses] This DIY spot welder is mainly used for welding nickel sheets of cylindrical batteries, NiMH batteries, NiCd batteries (such as 18650). Product Name: Mini Spot Welder Product size: 11.2 x 8 x 3cm Voltage: 4.2+0.05v Welding current: 6-1200A Battery capacity: 5000mah Overheat protection: 65C Full charge time: 2-3 hours Endurance: 800-2000 times Battery working cycle life: 1000 cycles Standby current: 20uA Storage temperature and humidity: 55C50% Max limited Charging: 5.2V2.1A Discharge: 5V2.4A max; Try to avoid running out of power to prolong battery life It's DIY kits, needs to finish by yourself. Color: Black Material: ABS+Metal Package Contents: 1 * Host 1 * Soldering Pen 1 * Charging Cable 1 * Sample Nickel Strip 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.