1990 - Volume #14, Issue #5, Page #23
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Solar Welding Helmet Darkens Instantly When You Strike Arc
The light of your welding arc provides power to this new electric welding helmet with solar cells that power a unique new lens that darkens instantly when you strike an arc and clears up again when you stor welding. No need to flip up the hood to see.
The Racal helmet darkens up in just two miliseconds. It only ..........


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1990 - Volume #14, Issue #5