I'm going to introduce everyone to a hidden truth: a sodium vapor lamp and a mercury UVC lamp are the same thing with different elements in the plasma. Both contain an electric arc. We are all arguing over which set of spectral lines we prefer

I'm going to introduce everyone to a hidden truth: a sodium vapor lamp and a mercury UVC lamp are the same thing with different elements in the plasma. Both contain an electric arc. We are all arguing over which set of spectral lines we prefer
that would be really cool i hope it's not one that would burn your eyes
I don't think they are available as normal lamps
But there are copper vapour lasers that can be used to produce a green beam. They run crazy hot (even at 1700 C the vapour pressure of copper is only like 0.005 mbar), but can be fairly high power
Then it shall be a room for my enemies... may the arc protect