[TR] Welding Helmet Question

[Karl Vacek]

One thing to remember about automatic lenses is that the UV protection is in 
the glass itself.  Whatever the shade adjustment - even if the lens isn't 
turned on and is thus "clear" - they provide good UV protection.

Now if the helmet isn't turned on, you're looking directly at the arc and 
can't see properly, but you're not sunburning your eyes.  Not that I've ever 
done that...  ahem...

Karl