I have just finished building a quad SRK up to test Tom E’s driver and find out what sort of spread the XPL emitters would give in this light.
I’ll start with the driver. Wow. What doesn’t this driver do. I’m probably the last person to ask to test a driver like this as I get lost in my driveway let alone try to get my head around the workings of this driver. I’ve been playing with it outside in the shed, the driver hooked up to an led and my power supply and got so lost.
I eventually had everything together to assemble the SRK when I dropped the lens and yes it shattered, me as well.
The light is now operational after waiting nearly three weeks for a lens. I started with this light. The XPL leds sit on 16mm Noctigons which themselves sit on a 5mm plate. The depth of the head was machined to suit the above stack. 20AWG wires channel the current to the leds from the Narsil driver which has the latest firmware. The stock springs in the tailcap were given a bypass with 18AWG wire.
Back to the programming. I was still lost and had all sorts of modes working but had no idea how I got there. Yes I did have the instructions in front of me.
I took the instructions inside along with the light to a warmer part of the world than outside and sat down in front of the TV in my comfy chair (no pun intended 
) and the instructions clearly laid out in front of me.
No luck. There was just to much going on with flashes and my poor brain not deciphering the flashes they were seeing.
Looking up I could see the light flashes reflecting on the tv screen (the tv was off). H’mm, starting again I watched the reflection of the flashes on the tv and it all of a sudden made sense. For some reason my fuzzy brain could decipher what the eyes were seeing on the tv screen, yes today the tv was a real idiot box.
The difference being was that I could clearly see the light and count accurately the flashes to work out where I was, working with the instructions.
Now to some beam shots. lts roughly about 50 meters, give or take a few, to the shrub at the end of the driveway.
Fistly is an X6 HI with XPL HI led and BLF A6 DD driver.
Secondly is a stock Convoy C8 with XPL HI led.
Thirdly is my last years comp build quad. This has four XPE2 Torch leds running a 5 amp driver from RMM with the leds wired in parallel.
Next is a ZY T08 with XPL led and BLF A6 DD driver.
And finally the modded SRK. Batterys are Q30’s. It was slightly foggy outside during the whole shoot. The pictures are pretty close to what I see in real life. This light just overwhelmed the camera though.
The SRK front on with the four XPL emitters. One day when I grow up I’ll be able to solder like Tom E and not melt isolators with the soldering iron.
And finally one of the reflectors backside showing the Noctigons and isolators used. On this light I relieved around the reflector holes to prevent any possibility of me able to create shorts.
