Portable spot welding machine pen control board updated to W1, with case included Benefits at a glance - W1 upgraded control board delivers more stable welds and reliable performance for precise micro spot welding tasks - Case included protects the board during transport and storage - Compact, portable design for easy on-site use and quick setup - Simple to install and compatible with portable spot welding pens that use the W1 control board - Durable construction supports regular use with minimal maintenance Key attributes - Function: control board for a portable spot welding machine pen, upgraded to W1 - Compatibility: designed for portable spot welding pens utilizing the W1 board - Size: compact, lightweight for easy handling and carry - Material: case protects the board during transport - Performance: reliable operation, improved control and weld consistency Use scenarios - Building or repairing lithium battery packs for small devices and RC gear - Attaching thin metal tabs on small electronics, PCBs, or related components - Prototyping or hobby projects that require precise micro spot welds on thin metals This description remains true to the product’s updated W1 control board and the included case, while clearly outlining practical benefits and real-world applications.