The D4V2 you were looking for in the above post has RGB AUX LEDs and I think a button light iirc. You can set them to a bunch of colors on high or low brightness, or even have them show the battery level. On low-brightness, depending on color, they can stay on 24-7 for 2-6 YEARS before running the battery down (hell, on high, they can stay on for 1-3 months before needing a recharge). They are wonderful for finding it in the dark.
AUX lights make it one of the best nightstand lights. Anduril 2 makes it have some cool tricks too. I have mine have high red aux when unlocked so it can be used as a darklight just by unlocking it, then it auto locks after a minute of non-use and the aux goes to low and uses colors to display battery level.
Look up an ANDURIL2 video guide or the graphical control layout to see how it is all done. (Videos help a lot)