Pulled this info from Amazon review. I bought a set to try in my 3v CR123 lights.
These are 3v regulated and not like your normal rcr123a
Reviewed in the United States on October 9, 2021
Some observations: Arrived with 3 of the 4 batteries < 3.0v and off via protection, was able to activate them on my charger and measured 2.7v so ok. Don’t try to charge these on a conventional charger as they never stop as are regulated at 3v and don’t reach 4.2v to stop the charge cycle. Must use the microusb port to charge. Observed that if overdischarged and protection enabled the usb charge port does not reenable the battery, had to enable on a charger before would take a charge via usb. Charge rate on the port is 300ma.
I have a couple of these, not really a big fan. They sit pretty far off your belt but the problem is really how hard it is to draw the light. Lets just the retention is…excellent.
Coming up as $15.99 for me ($3 less if you have Amazon Prime). LINK. How weird that the Amazon listing has key info missing, like emitter and battery details. A CREE T6 sounds old. I’m guessing cool white.
From what I see in the Amazon pic — the led has 3 bond wires XM-L ( very old) these lights most likely have the crappy pill and tail switch — Been there Done that
This reminds me of a commercial for a toy I saw on TV probably 20 years ago:
In the commercial, a bunch of kids are at a dining room table. The parent places the toy gadget in the center of the table and turns it on. The gadget itself was a plastic thing that started to spin around and then sprayed green slime in every direction.
The slime, which might have been green jello or something similar, sprayed out hitting the kids, the parents, the walls, the ceiling. It went quite a distance and got on everything! Meanwhile, the kids and parents are laughing and appear to be having a great time as they and the room get completely slimed.
All I could think of when I saw the commercial was “what parent would possibly be convinced by this commercial to buy that thing for their kids!!!”