New WildTrail (former LuckSun) BLF-D80v2 Sale is open.

According to koef3's testing of the SST-40 N4 flux bin the sweet spot is around 7.4A (2.388lm@3.56V).

https://budgetlightforum.com/t/-/49788

Anything above that value seems to be harmful for its life expectancy and bond wires.