O wow! That's a lot of blackening on that CMH lamp!! There is a 90% possibility that this lamp is burned. Go have it checked at your local electrician shop along with the other ones.
![Bulb Man :bulbman:](/Smileys/default/bulbmanicon.png)
Though in the first photo this MV lamp is self ballasted, that means that it needs no gear to function, you just plug it in the wall. The tungsten filament works like a ballast!
![Wink ;)](/Smileys/default/wink.gif)