The ultra-thick copper tube 10AWG welding wire and the alumina copper spot welding needle the overcurrent capability and durability, and greatly improve the spot welding efficiency.Pure copper conduction heat conduction greatly improves spot welding efficiency.8 speed adjustment digital tube real-time display.High frequency capacitors have low internal and can withstand high temperatures of 105 degrees Celsius.Both sides of the outlet are convenient for spot welding, and there are labels, which are not easy to connect wrongly.Specification:MOS core operating temperature: 175Vds: withstand voltage up to 40VRds(on): Single chip internal as low as 077mR: single overcurrent capacity 300AColour: greenMaterial: MetalPackage Contents:2 x Connection cable2 x Spot Welding Pen1 x W1 Motherboard1 x 5M Nickel Sheet4 set x Stainless Steel Screws2 x Heat Shrink SleeveOnly the above package content, other products are not included.Note: Light 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.