This transistor spot welding machine is equipped with 5 MOS tubes, low internal resistance with large current. Colorful LCD display for display welding parameters. Support multiple welding sources, two welding methods adjustable, the welding thickness is up to 0.15mm. Compact size makes the mini spot welder easy and convenient to carry. The DIY welding machine supports multiple welding sources, 12V car battery, lithium battery, and supercapacitor. Features: - Color: Red. - Material: ABS. - Size: 100x50mm/3.94x1.97inch. - Mini spot welder is equipped with 5 MOS tubes, low internal resistance with large current. Colorful LCD display for display welding parameters. - Mini spot welder supports multiple welding sources, 12V car battery, lithium battery, and supercapacitor. With one 25V, 10000uf high--frequency low resistance capacitance for compensate welding energy - The mini spot welder two welding methods, automatic welding and manual welding adjustable - The controller adopts MCU control, with accurate pulse for ensuring welding quality. The welding pen and input cable of the mini spot welder uses U-shape colding pressure terminal connection, which convenient detachment - The plate has 2mm copper for increase overcurrent capability. 10AWG multiple strands of high temperature silica gel wire with fine torsional resistance ability. And the welding thickness of the mini spot welder is up to 0.15mm Packing list: 1 * Mini Spot Welder