ProductDescription1 : ✔Easy to Use - The product package comes with a small file for maintaining the welding pen, main board of spot welder, full set of accessories. In the process of using the spot welder board, see our pictures for details. You only need to provide battery power to connect our motherboard to DIY 18650 and other batteries. ProductDescription2 : ✔Powerful Function - Spot Welder Control Board support welding 0.3mm nickel sheet, 6 gears can be adjusted, support welding current 100A-900A. ProductSiteLaunchDate : 2019-08-16T07:00:00.000Z Reusability : Single Use Size : 5mm SpecificUsesForProduct : Amateur Style : Portable welding machine SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Iron UnitCount : 1 UpperTemperatureRating : 60 degrees_celsius Wattage : 5000 watts