Review/Test of 9A 3-Mode 5.5-12V Circuit board

[wight]

@ma_sha1

This driver is the Only 9A 3 mode driver for 3x18650.
I used it for my FM3X UT with CBT-90 build, which is one of the few lights I kept. It’s not just big power, long throw, it also have the best beam and tint of all the lights I’ve ever built. It’s very rare to see solid core zero donut on big die.

Unfortunately, the driver just died, This is the 2nd time it happened, and I had copper heat sink made just for the driver. I am not trying it for the 3rd time, unfortunately, still no other 3 mode 9A driver out there.

Assuming that the CBT-90 can take rough treatment (high voltage spikes) you could probably consider the HX-1175b1. Driver Info: HX-1175b & HX-1175B1 (Pic Heavy) (EDIT: with a piggybacked ATtiny13A for 3-mode & etc)