GREAT FOR ARC, MIG, MAG (C02), TIG WELDING. AUTO DARKENING LENS WILL AUTOMATICALLY DARKENS TO IT'S SELECTED SHADE NUMBER WHEN THE LIGHT FROM WELDER IS DETECTED. SOLAR CELL POWERED WHEN WELDING. THE LENS AUTOMATICALLY DARKENS WHEN THE ARC IS STUCK IN 1/25,000 OF A SECOND.
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