Old folks like some of us ( me ) .don't always like changes
I bought a new circular saw and there was a red laser line .. I wondered what that was for
But it was not so bad after all
A lamp is perhaps not so useful .But a point ..where the weld hits would be something perhaps worth trying
Not with MIG or TIG where a button is pushed... But for stick weld ..When tacking
Especially with thin materials. Hold it with left hand .. : Aim at the point ( lamp or laser ) and close eyes.
If one welds daily it might not be a help or big difference :but if it is now and then it happens one stares into the Beam..Not in sync with the aiming and closing the eyes