80 Gears Adjustable:This spot welder equipment with 80 gears output power adjustable,it can be adjusted according to your different needs.25-45 gears suitable for 0.1mm nickel strip,46-69 gears suitable for 0.12-0.15mm nickel strip,70-80 gears suitable for 0.2mm nickel strip. Plastic shell:Our spot welder is a plastic shell, which can dissipate heat very well. High-quality material is wear-resistant and drop-resistant, and has a long service life. Auto Power Off:It can be used to weld iron, steel, and stainless steel sheets with a thickness less than 0.15mm/ 0.006 inch to other iron, steel, and stainless steel materials.If you focus on other items and forget to turn it off, it will turn off after 6 minutes,let you use more at ease. Battery doesn't go down fast at all, took a bit to dial in the weld intencity setting but it's a snap. Great for hobby level battery spot welding Colour:black Material:plastic Package Contents: 1 x Spot Welder Machine 1 x Tweezers 1 x USB Line 1 x English manual 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.