Very interested. Will this potentially affect mode memory like the lighted tail switch?
Seeing as all the lights in his example are e-switch it may not even work correctly on mechanical switches but I guess we will see
Interested
my Bistro HD OTSM drivers are not affected by a bleeder resistor for tail switch lighted
on e-switch lights nothing gets affected by switch or TIR LEDs
but a Tail clicky light with TIR has the problem as no ground is available when the tail is off, so wont work
Interested in D4 board. Though I don’t fully understand what it is. 
first Emisar D4 sucessfully modded
as I had no feedback on the solder pads distance the first batch is 0.7mm off but no problem to solder even 0.75mm² wires if carefully filed the holes to one shape
the ones with Gen 3 LVP will be different, holes distance will be right and no filing as I routed wires between the 3 center holes
This is first board made, I had some mishaps like blowing it with hot air from reflow plate as the 0.6mm thick weights like nothing half the components fell of
ripped solder pad removing a resistor but in the end it works
Note that I have not ordered yet 0402 resistors so they are all 0603 too big for pads but it works at least, the 2 capacitors are 0402 and fit nicely
also replaced the original 0.35mm² wired with 0.75mm²
future board will look nicer
flashed NarsilM v1.2 on the Emisar
Wow!!
Some PINK leds would go a looong way towards justifying multiple D4S purchases to my wife.
What drivers will this work on? Any e-switch?
I’m considering getting a D4 now…
I am interested in this.
Oh wow…I am really interested.
I’d be interested in an e-switch version… Possibly for a bigger light like the L6 or the S70.
Lexel ?
How about adding a bleeder between the spring pad and ground pad on the clicky board itself?
problem is the driver as the MCU want to power up
with normal D4 firmware it will be constant on as it has in the firmware the LED output pin not used
simply connect to LED+ and ground
D4S firmware has the LED pin used
I would love to buy one of these with amber LEDs to replace the blue in my D4S. I am looking to make a no-blue nightlight mode. Also would be interested in amber or red for the D4. Lexel, any idea when these will be available for sale?
Oh yes! Really interested in this for the D4 
Soooo when can we buy them for the D4 ? :-p
They are already for sale
I’ve been thinking about using aux LEDs for illumination and the terrible beam shape that they produce. I see 3 possible fixes…and both might be hard to implement.
1. Mount them up on a pole, so they are close to the flat part of TIR
2. Add a light pipe above them to channel the light up to the flat part of TIR
3. Use optics legs as a light pipe
Is any of these doable in practice? If so is any of these a good idea?
Any other ideas?