Ah I see 
Far from meaningless, but might be a translation issue
Chris
The hot parts are the mosfet & two diodes(?) on the top surface of the top board. In a light, those have to be in good contact with something substantial or else you get about 5-8 minutes runtime on high before it starts giving the overheat warning. Or, at least the version I have that runs at 9A does. It seems they are highly variable in the output they leave the factory with.
Thanks for the review! I was betting these things were not efficient and therefore creating a lot of heat. Looks like I will wait for another board to come out. Sooner or later someone is going to make a board just for the MT-G2.
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)
Hello,
i have some lamps with this electronic:
Basically it works, but I am thinking about changing the firmware (if possible)
Does anyone know what kind of controller is it?
There are two 8-pin chips. One of them is an EEPROM memory (24c02).
So, the other IC would be the microcontroller.
I don’t think it is a Atmel ATTiny, because that has already an EEPROM integrated.
Does anywone know the controller? Is there a chance to change the firmware?
Regards