BLF Kronos X5 mod x6 mod faq thread tailcaplight

[pilotdog68]

Most of this was already covered in this thread, but I’ll paste my explanation here too so it doesn’t get lost in the other thread.

@pilotdog68

@timbo114

I’m wondering … How could one disable the tailcap LED?

Hopefully my cell phone pictures will be clear enough to see what I’m talking about.

Disclaimer: Messing with these resistors will probably have effects on switch short/medium/long press timing. It shouldn’t be anything drastic, and it may even be a positive effect, but be aware.
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If you unscrew the switch retaining ring, this is what will come out.

Circled is the resistor that sets the brightness of the tail led. The stock resistor is 2kOhm. If you want the tail to be a different brightness, change this resistor. The higher the resistor value, the lower the brightness. Other people have had good luck with 8-12kOhm resistors. If you are ordering these resistors, look for either “0603” or “0805” package sizes. If you search, they can easily be found all over the internet.

If you want to shut off the tail LED altogether, remove this resistor or at least disconnect one end of it.
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If you unscrew the driver retaining ring, this is what will come out.

Circled is the bleeder resistor. This resistor allows a small amount of power to bypass the driver and main LED at all times. The driver needs this to function when the tail LED is installed. It is not absolutely necessary to remove it if you only want to get rid of the glowing blue light, but removing the bleeder will greatly increase efficiency in the lowest mode(s).