Another day, another question 
I see the C8 with the new firmware has low voltage protection (mentioned here). Is that a feature that the S2+ with biscotti would have as well or does it require additional hardware to completely cut off the power draw?
I’ve still no luck finding any comments about the YZ-BG7236/DV-S5 or related lights. I did see on Ultrafire’s site that it was click for on/off and half-click for mode switch which seems a decent UI for a light with no memory and that the bit around the switch lights up as a low battery warning.