Specification: High quality material: This lightweight portable spot welder is made of solid, durable aluminum alloy housing with anodic oxidation surface, wear resistant. Efficient welding: with a total of 5-speed output power, easily adjustable, for precise welding; and there is LED light to indicate the work equipment. Good performance: Welding pin, with gold plated connector, long enough, flexible to use, quick to install, good conductivity, ensures beautiful welding points. Safe, reliable use: The welding machine has low voltage, overcurrent and overcharge protection, low battery alarm function, automatic shutdown at low power. Powerbank function: Built-in battery, 5000mAh high capacity, supports fast charging of mobile devices via 5V 2.1A USB port, very convenient. Material: aluminium alloy Color: Black Power: max. 650A Battery: 3.7V 5000mAh battery Item size: 10.3.8.4.2.7 cm to 4.06.3.31.1.06 inch Package size: 10.3.8.4.2.7 cm to 4.05.3.30.1.06 inch Note Due to the light and screen difference, the item's color may be slightly different from the pictures. We guarantee the style is the same as shown in the pictures Package Included: 1 x Spot welding equipment 2 x Welding pin 1 x Charging cable 1 x Nickel sheet