Looks like the only upgrade from the previous generation is 100%Xenon gas filling (Nightbreaker used to be Halogen+Xenon)..
Which would make for a short bulb life. You need the "The Saltmaker!"
1 for the halogen cycle to work. Iodine used to be in vogue (hence, "quartz-iodine" bulbs in ad copy in the '60s and '70s) but bromine has largely replaced it. Both, of course, are still halogens (as is, of course sodium, but that isn't used in tungsten-halogen lamps, rather it's used where an arc
is desired, such as in streetlighting. And such lamps, particularly high-pressure sodium lamps, have a terrible CRI.) Then you get fluorine, chlorine, and astatine, which also aren't used in tungsten-halogen bulbs.
"Gee, Wally, this Borosilicate-Bromine bulb sure is SWELL!"
Studying them would be a noble venture!
I see what you did there!
1Playing with the etymology of "halogen" and Mentos commercials.