Blue. I’ve ordered a few sizes recently and they’ve all had blue AR.
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Nice technique with the bezel removal!
I thought maybe I could try that with 1 of my ZebraLights, but the O-ring is under the lens.
Thanks! I’ve never had a Zebralight. From what I’ve seen modding looks like a challenge.
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Success on the HD10 mod! I edited my post above with new info.
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Ooh nice. The beam is so much nicer with those rings removed. Great job and the op reflector is much better. I didn’t know they did a red Sc31, it’s pretty and nicer than the usual black. I’m useless so just clanked an S2+ 38 degree beaded tir in mine and called it a day as that’s the level of diy I have 
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I have Black, Green, Blue and Red but they also made Purple.
I put a Convoy 5050 TIR in one I gave to a friend.
Most of my lights have TIRs so I wanted reflectors for some of my SC31 Pro.
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Well that’s just greedy hah. Seen the purple on Aliexpress but the red is the best looking. Very nice and now I want one as it’s different and yeah I do like op reflectors. Might have to give it a whirl. What’s the worst that could happen I dont need all my fingers anyway.
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I like the Sofirn Blue and Green.
Picture stolen from a buddy of mine.
If you use a S2+ OP Reflector:
You’ll need to reduce the diameter.
They are about 12mm tall.
The SC31 Pro stock Reflector is 10mm tall.
I used a thinner MCPCB, thinner lens and no oring(I just used the clear plastic ring) to make up for some of the difference.
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Ooooh they’re all pretty and the blue looks a lot nicer than the pics I’ve seen on AE. Still liking that red though and thinner MCPCB you say. Right that’s me back out. Thought I was an engineer when I clanked a 5050 tir in and changed the oring to match hah but swapping mcpcb’s or any sort of soldering and I’m useless. I want to turn the main head of mine silver to match the tube and bezel but as soon as I clicked on I’d have to desolder I convinced myself that black is nice enough
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I really like the green too. I did ask Sofirn if they were going to do an updated buck driver version of the SC31 Pro, like Wurkkos did with the FC11, but they said “no plans.”
Not that there’s anything terribly wrong with the stock driver, it’s perfectly fine for general use - but it would be much sweeter with a nice regulated driver.
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A buck driver would be nice but a better reflector is necessary.
Now that I focused on the rings in the beam, it’s all I see.
I am looking to build a throwy 21700 light with a deep reflector for an emitter like the SFT40 - similar to a Weltool T12.
I found this unique reflector on Kaidomain - might anyone know a compatible host?
I did a mod today that was fairly pointless, swapped the SST40 of a Convoy S21E for a SFT40 3000K 90CRI, while you can also simply order that light with that emitter already installed from Simon, no swapping needed. At least I measured output before and after so now I know that going from SST40 (with dome, cool, and low CRI) to SFT40 (no dome, warm, 95CRI) will leave you with 55% of original output, and that the smooth reflector of the S21E makes a very ugly beam no matter the focus. I swapped in the OP reflector of another S21E and that makes a lovely beam.
Then I did a bare led test on the SFT40 3000K 95CRI which was also pointless because only after the test I thought of checking BLF if someone had done that already and indeed koef3 had done the test ages ago (but I missed it because I’m not on BLF that often anymore). At least our results match quite nicely.
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Btw, it is fun to read the first post in this thread from pilotdog68, about his fear that modding on BLF was dead. And here we are 8 years and 13040 posts later… 
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Nice to see 1500 lumens at 8 amps with warm tint and hi CRI.
Also is fun to see your mods 
Good to see you!
Swapped out whatever crappy emitter Olight uses in my Baton 4. Dropped in a 219b 4000k.
Kinda messed up the lip trying to get the bezel off. Its pretty soft aluminum! It really didn’t take much effort to chew it up. I sanded it to try to get some of the chips out. Now there’s a small gap. Thinking about trying to squeeze a copper washer in there. We’ll see.
Beam pattern didn’t really change. No artifacts (that I can see). The color is a whole lot better, though. Did seem to lose the turbo function. Wondering if it might be because of the low battery. Pics are a comparison with my neghbors stock emitter Baton 4.
Lux from about 18" - 13000
CCT - 3807k
CRI - 97.4
DUV - -0.0065
R9 - 90.97
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Dedomed the 4500K 519a’s in a Skilhunt:
Im very happy w the change in Tint and warmth, and especially with no objectionable artefacts
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I modded the Olight Warrior Nano with LatticePower CSP2323 4000K leds.
I used a MCPCB from Wurkkos and the corresponding TIR optic.
Since the Warrior Nano MCPCB has a specific shape (see below) and height (2mm), I needed to make a 2nd MCPCB to work as heatsink and spacer at the same time. I used a 20mm copper MCPCB, and shaped it using a permanent marker, cutting pliers and files.
Also, because the wires from the driver are quite short, and their polarity didn’t match the new MCPCB polarity, I needed to invert the LEDs position, rotating them. In the end the original + became - and vice-versa (also shown below).
Result: The beam is very different from what it was before, the tint - of course - is much better, but I am not sure if it gained brightness. I didn’t measure it before, but it seems that despite the 3 leds, it didn’t gain a “wow” effect. I will still find out about the distance range, but I would say that it now reaches less distance.
Here are some photos of the process:
Original Olight MCPCB
Marking, cutting and filing! And it fits!
LEDs polarity inversion! Top is modded and down is normal MCPCB.
Assembling! Note that I added thermal paste below the copper MCPCB and between both MCPCBs!
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Not as extended a mod as the above one from MascaratumB 
in fact this is a 20 minute mod , but I found a simple Decathlon light left behind by a pupil in the school where I work, simple but effective: just on-off, 10 lumen, 1AA batterij, just the light was a terrible angry blue so that had to change.
Here’s the light in pieces:
The led is some standard midpower SMD
This was a job for my budget but very effective hot air solder thing at 250 degrees and narrow nozzle. Robbed a 4000K Sunlike led from a donor led strip.
And look how nice the light is now. Just 6 lumen, and the beam is a bit ringy in the periphery of the spill, but the hotspot is very pleasant: CCT 3980/98CRI in the center, with a peachy CCT 3300 97CRI corona.
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