Built-in safety monitors battery temperature (Cont), automatically halting welding (Trigger disable) and alerting you if overheating is detected, preventing damage. If there is no operation for 8 minutes, the spot welder automatically shut down. Engineered for exceptional energy efficiency , significantly extending standby time between uses and reducing operational costs. 100-Level Power Control: Fine-tune welding strength for delicate tasks (like phone/bluetooth batteries) or robust jobs (cylindrical power cells) with our intuitive rotary knob. Expertly weld cylindrical power batteries, mobile phone batteries, and Bluetooth batteries (Mode) with tailored settings accessible via the clear control panel. Effortlessly adjust settings (Gear, Trigger Time, Mode, Number of continuous spot welds) using the large rotary knob and clearly labeled control panel for ultimate user-friendliness. Our package includes a UK1 spot welder, a pair of spot welding pens, a foot switch, a roll of nickel-plated sheet metal, a charging cable, and a piece of gauze. Everything you need is included. Once you receive the package, simply charge the spot welder and you're ready to go. The package is beautifully wrapped, making it a great gift for your loved , Father's Day, or friends. Color: As shown Material: Metal Package Contents: 1*set spot welder 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.