What do their HQL, HQI, HIT, HCI acronyms mean?
Also they have three distinct lines of Metal Halide bulbs:

POWERSTAR, POWERARC and POWERBALL.

For example, in my personal collection there is a POWERARC HIT-T 1000W/D bulb.
But it seems like this same bulb has a POWERSTAR variant.

How are they different?

@RCM442
That is true, everything you do no matter how justified always seems to have criticism. You put in a lot of work on this platform and you deserve recognition for that in my opinion. I understand it is a lot easier to just eliminate an entire topic rather than combing through comments deleting the ones that might be bad. Ideally any unruliness would be handled on a user by user basis, but you are only one person and that would be a lot of work.

I think I have said this before, but more moderators would theoretically help. But obviously not all moderators are the same and some hold different standards and that just causes controversy. So I would say just keep doing what you're doing right now, you're doing an excellent job.

@lightsofpahrump
My interest has done the same thing, but my lighting phases seem to last a lot longer than other electrical phases of interest just due to the fact that LG exists.

I deserve a...dude, where's the slapping emoji?

We have it at at the gallery side

Actually I use phone with LineageOS and I'm not going to change that.
BTW LineageOS is the succesor of CyanogenMod

https://www.worldradiohistory.com/Archive-Catalogs/Graybar/Graybar-1926-1927.pdfHas anyone seen anything that's in here IRL? Especially something like the Brylock sockets on page 248(265 in the pdf)?

I meant desktop systems like Ubuntu or Fedora. On the mobile, if you are concerned, you can deliberately pick up models which are easy to unlock and which are well supported with alternative firmwares like Cyanogen or Lineage.

UVA sensitive phosphors are easy to get from Aliexpress. Most of long afterglow inorganic stuff will work with UVA and for DIY remote phosphor even organic phosphors are OK. Probably you even can pick some at local art stores. Fluorescein and rhodamine solutions look fun with UVA and blue light too! There is also some new bright organic phosphor stuff like pyranine.

On x86 there is no problem as we can install any system for this platform and modify it in any way. On phones this is problematic because most manufacturers require additional steps (some long-lasting) to unlock bootloader to flash custom ROM if available (like LineageOS or other, on some phones even postmarketOS) or to modify stock, or don't allow it at all. On some of them it may have some irreversible consequences (like trip Knox flag on Samsung). Manufacturers may make it even harder (Xiaomi HyperOS if not mistaken) or get rid off in some future update (Samsung since OneUI8).

Aah damnit.
Near zero chance to find them to add to the collection, i guess. Even 'plain' remote phosphor ones are hard to find locally.

By now UV and near UV leds have gotten pretty common so i guess it should be possible to see if production would be economically possible these days - if the efficiency would be acceptable.

It would be fun to experiment with remote phosphor stuff as a hobbyist, but so far i haven't come across vendors of the right phosphors in hobbyist amounts.

E: found this: https://img.archilovers.com/blog/3648_01.pdf
A CRI of 70 and 85 isn't that great in today's context. But i know for certain (i have some 2003...2009 LED lamps) the 80 cri common warm white-ish LEDs are absolutely ugly so they could definitely have been better than what was on the consumer market at that point in time.

Either way, i'd like to add somethng like this to my collection of oddball or historically significant LEDs. Same goes for the pre-Nichia era blue LEDs.

On open source distros you are always in control to root out this sh&%, so no problem. Sorry for UK iOS users...