tool aa biscotti
would it make a difference if each optics holder was (inner side) wraped with reflective tape
No I dont think so, all of the light should be reflected inside the optic. (TIR = total internal reflection)
Here’s a good diagram from LEDiL:
Did you just sand down a normal 17mm convoy driver?
Emitter swaped two Thrunite Ti3’s. These are very easy to mod, nothing is glued.
First one is a shaved LH351D 3500k 90cri from digikey.
Second one is a XP-G3 photo red.
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Factory NW Ti3 on the left and LH351D on the right, set at 5000k white balance.
The NW has noticeable green around the cornea that the pic doesn’t show that much.
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White balance set at 4500k.
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Ti3 with the XP-G3 photo red.
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Drver uses resistors for modes that can be changed to acheive different outputs.
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More info in this post ~~ENDED~~ [US Only] Free Thrunite Ti3 v2 on Thrunite.com (with $5.95 shipping fee) - #112 by moderator007
yes and the pill too
modded SK98 clone with nichia 219c 4000k
2mm spacer for tailstand
GITD tape hand cut
beam shots with fixed focus&exposure
zoom
high
medium
low
auto focus&exposure
artifacts i believe are due to bad cut of GITD tape and the small footprint of LED and big hole of the brown spacer (KDlight text is projected on zoom)
soldered the tail spring to the brass cap/cup
I was looking more closely at your photos. Are the aux LEDs mounted to a separate board?
Likely using this or something similar: [SALE] lighted aux boards, D1 and D1S multicolored
To be honest, I’m surprised we don’t see more of this mod. It’s pretty sweet. Come to think of it, I need to try that myself!
Nice one moderator007 
The 3500K led seems quite nice !
And certainly better than the original one 
Today I modded my original Convoy S2+ Desert Tan with a LD-x4 7A-9A driver and a Luxeon MZ 5700K 90CRI, both from led4power!
I kept the original pill with the Biscotti driver and XPL-HI led, and use another pill with a kiriba-ru custom retaining ring. The gasket is typical 3535 gasket filed to accomodate a 4040 led, like the Luxeon MZ
I like the tint, that is on the “border” of NW to CW, and specially it’s colour rendering! I would say it looks like a Nichia 5700K 90 CRI (although I don’t have mine installed to compare).
As seen in other experiences, this led creates a slight “donut hole”, even with OP reflector. However, that is more noticeable in close range. At distance (+5m), no problems!
LEFT: Luxeon MZ 5700K > 4 x Samsung 5000K > Nichia Nichia NVSW219BT ~5000K
RIGHT: Luxeon MZ 5700K > Luxeon V2 5000K > Luxeon V2 4000K > 4 x Luxeon V 4000K > Luxeon V2 3000K
EDIT:
Luxeon MZ 90 CRI vs XPL-HI 70 CRI
Ugh now I ordered a few more just cause I know you are tinkering with the driver. Hope you ordered some extra resistors so I can ride your coat tails, lol.
YLP X1 xp-g2 > 219b 4500k
My first keychain that have an integrated pill. The bezel is glued, but can be unscrewed without the use of heavy equipment.
Mcpcb is aluminum and glued, but something very weak. Easy to clean. The driver does not need to be removed to replace the led.
Umm… is that the YLP’s driver? The one suspiciously labelled TANK007?
integrated shelf but they anodized it 
if you sanded that you could probably convert this to FET 10440 and fill up dead driver space with 10mm copper MCPCB glued to bottom side
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If it is lead free, do you know how to save the led ?
I did not know anyone was using lead free for led to mcpcb’s.
Thanks :+1:
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Yep, that is a good idea for extra buffer heat transfer space between off and on. :+1:
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Yes, this is the driver that was in this flashlight by default. That surprised me a bit too.
I’ve been thinking about something like this, but I don’t know how to sand a shelf that is “hidden”.
Besides, I prefer to power small lights with aaa, because I usually carry these with my keys and I do not have to remember to charge the battery.
If it bothers you, you could sand down one side of the lens to make it frosted and that should eliminate the donut hole entirely.
Not sure if I got you right, the LED should survive the higher temperature.