https://spicy3dprints.com sells some really nice battery cases, including small sizes.

Glass “occlusion devices”?

Might be Deep Blue W2. Photo of the emitters?

5700k 519A/W1 (no point in W2 with only 2A/LED, so might as well go W1 for more throw, especially with the shallow optics) and 5700/2700k 519A.

I don’t really know much about neopixels, what do they need in terms of control, does it have to be a constant signal or can they just stay in a mode until another mode is set? How many MCU pins do they need?

Aux can’t be set to anything but high or low, so advanced colour mixing can’t be done, if that’s what you mean.

It is possible in theory to use some colours on low and some on high at the same time, but the brightness difference would make the low invisible.

Also, it can’t be done with PWM because the MCU wouldn’t be able to sleep when the light was off/locked, and there aren’t enough free PWM counters IIRC anyway.

Maybe if there was a smarter RGB LED, that could have 3 values set via serial and it has a chip on it to do the processing and adjust its outputs, but such a device would be too large to fit where the current aux LEDs go on any light.

Well, the fact that I don’t feel comfortable using that specific term aside (in terms of not being from a related culture), not specifically. Always liked sharks but they were never my favourite animal specifically. Personally, I’m more wolflike with some dog traits. Maybe a bit of fox in there somewhere too.

Spinnnnnnnny…

Maybe a bad reflow giving poor heat conductivity to the MCPCB? Since the temperature is measured at the MCU, that could result in an LED overheating without the MCU going into thermal protection in time.

The world would be a lot better if there was a lot less of it. Simple as that.