The spot welder control module is developed for DIY or simple battery welder. It is mainly used for single battery or battery group nickel plated sheet welding, such as18650 lithium battery nickel plating 0.15 and 0.2mm steel sheets, transformer above500W can be welded directly. It is intended to weld other battery materials and different thickness, such as polymer battery electrode without nickel plating, must be combined with sufficient power transformer to weld. This module includes main board and display board, 100A bidirectional silicon control tectifier, does not include welding , welding pen and other matching tools. Scope of use: 1. DIY or simple battery welder development welding. 2. Welding of a single battery or battery pack. Functional overview: 1. Can be set to save the last operation, this module single pulse trigger, if need double pulse, please select -102 -12864 model. 2. The main board and the display operation panel are separated, and the outer casing can be flexibly assembled. 3. Three groups of data digital tube display, operation intuitive, convenient, single encoder parameter adjustment can make the operation simple and fast. Colour:As Shown Material:PCB Package Contents: 1 x Time Control Module 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.