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Central ND | Gosh, I put an compact auto darkening lenses in a light weight old old old helmet many years ago and it just keeps on working(I like the light weight small part about it) I got it a a welding supply store.
I think its solar? I cant even tell you what it is without looking. I've never turned it on or turned it off and don't think there is even a way to do so. It just keeps on working. Maybe 10 or 15 years old already. I just keep replacing the protector lenses in front of it.
Edited by School Of Hard Knock 5/28/2026 07:02
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