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by anenefan
1268 days ago
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The blue light is from a arc welding process be it stick rods or gas shielded continuous wire. A flame would not have the on and off as described as well as being hard to detect at any distance. The most common steel welding flame process, oxy acetylene flame has an inner blue hue but the welding pool is probably brighter, so I doubt even at 10 feet a person could notice any particular colour hue, for anything hand held. |
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