Acebeam from last few month
Fenix is pretty good IF and only if you buy from an authorized dealer
If you want “failures” well theres always the armytek fiasco from a few years ago
Basically youll be sticking to fenix …
Im a fenix fan and often say flashaholics ignore reliability and warranty
But the only consistently reliable dont ship to china warranty i know of is fenix and some american brands
Or anything bought from rei
Oh and sofirn does have more support than many of these cheap chinese brands, have you contacted them to inform em of the issue?