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U3 Support center
Card-size welder: tuning combos, auto/manual, 2" color screen, 5000/7500/11000mAh, welds 0.35mm. Same as U3 Pro minus the smart-pen port.
Specifications
The nine spec groups are in the specifications on the product page.
Safety notes
Key safety points for lithium-battery work are in the Safety & Usage Guidelines.
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