Olight Ti S Mini mod to sw30

I purchased some 17mm tir’s from ali a year ago or so just for this purpose but never have got around to trying them out.
Maye this will inspire me to disaasemble and try them out.

I look forward to your progress :wink:

My guess is the 17mm pebbled Tir for XM LEDs, which are just the lens, no holder, should work well.

I did a test with Scotch Tape over the stock lens, and the dark shadow in the middle of the beam is completely gone: (both beams are w the sw30 and stock Tir)


the tape is bridging the concave lens, that has a dimple in the middle. So I dont expect the tape to last… but its a proof of concept that diffusion will hide the shadow. I can live with the tape, until my pebble Tir for XM LEDs arrive next year… :wink:

I tried the 17mm Tir for XP LEDs but they come in a holder that does not have the lip for the bezel…


removing the holder does not work because the Tir lens for XP LEDs is only 15mm by itself

Evidently the optics I bought a year ago are the same as the one you have in the pic above. The height I can make work but the housing is what measures the needed 17mm. I shaved the top lip of the housing about 2mm and got the right height but the optic would just fall right out. It could be glued in with uv optic glue I guess. I tried to find something on Ali that might work but all the 17mm’s include the housing for the dimension. A 20mm might have to be filed or turned down to make it work but the 20mm’s I found have a few mm more in height. I also found 21mm’s with the housing which should mean the actual optic to be around the 19mm range. By the way, my olight is a S1R 2 baton but appears to have the same setup in the head.
I’m rethinking this setup to maybe go with a XHP50.2 3v just for the pocket rocket wow factor, just to see what it will do. It should be good since the driver pushes the XM-L2 to 1000 lumens.

true for the XP Tir

however, there is a Pebbled 17mm XM Tir without a housing:

I ordered some. Since the artifact Im getting with the stock XM Tir, is eliminated with Scotch Tape diffusion, Im hopeful the Pebbled 17mm XM Tir will diffuse the artifact with 219b…


Those are the exact TIRs I’ve used in the S mini lights. I’ve used the 20 and 30 degree versions and both work well with a shaved LH351D. Nice and smooth.
Since the TIRs are cheap and the shipping is not free, you might as well try some other TIRs.

- Frosted and beaded Yajiamei TIRs in 20mm diameter work great in the BLF A6 to clean up those XPL rainbows.

- Same diameter works in the SC31 pro, but I prefer a slight frost (sanded clear) for more throw. Lots of options to pick from.

- 22mm diameters works great in LED converted minimags.

  • Smaller diameters work in several AA and AAA lights.

The holders seem to add 2-3 mm, so the 17mm in a holder becomes ~15mm once removed.

Measure the reflectors of any light you want to convert and buy a couple TIRs to try. It is just another mix-n-match option to improve a light!

Have fun!

thanks for the encouragement :+1:

fwiw, LH351d is a good match for my Sunwayman V11r, that came w XM reflector.

the beam is worse w 219b in the V11r, than in the Ti S Mini

and fwiw, shaved LH351d is worse than dome on, in V11r:

I agree that pebbled Tir are a great option and look forward to trying one in the Ti S Mini

moderator007 also shared a Tir that works very well in Thrunite Ti3 V2:
pic is a link to more info

And some Tint measurements using my Opple:



I prefer the Tint of the sw30… it is less yellow (above BBL), and slightly more pink (below BBL).

I have a pair of SWM V11r lights with shaved LH351D LEDs.
One in 4000k and one in 5000k. I prefer shaved domes for the duv reduction, but they did have some rings.
I didn’t like rings so now they have some DC fix to smooth out the beam.

The V11r has a relatively deep 18mm wide reflector. This makes it more difficult to find a TIR replacement.
A modified 20mm TIR with a thicker o-ring might work? Something to try.


Yes, I was searching for something to work with the smaller 219b. The one you linked might be the best shot at it working as the height is less than 1mm taller and should be very close to the right diameter, the led opening will still be a little large for the 219b though. It might take a little experimenting to find out which end you could take a little off of the tir to get a good beam. You might take a little off the led opening since the XML substrate is probably a little thicker than the 219b. Let us know what you find out. :wink:

Im hoping the pebbled diffusion will hide the shadow in the middle of the beam, caused by the smaller 219b in an XM Tir

Received pebbled Tir and installed in Ti SMini w sw30.





the beam is clean, no dark shadow in the middle anymore.

there is still a gap of about 1mm at the bezel, because the mcpcb I used is thicker than stock.

I dont mind the gap, work in progress, as I may want to open the light again… I forgot to put glow paint below the optic…

I chose a 30 degree XM optic, might try a 20 degree next time.

There was no lumen penalty, the output total stayed the same w the Pebbled Tir.

Have not used the light at night yet, but first impressions are positive. I suspect the main difference will be that the Pebbled Tir will not reach forward as much as the stock Tir…

Looks good Jon . Glad that worked for you . :+1:

thanks… definitely got rid of the dark shadow midbeam… very happy w the Pebble Tir:


thanks for your comments and encouragement… I agree, the 17mm pebbled XM Tir works very well w 219b in my Ti S Mini… it has turned the light into a little Nichia Jewel :+1:


OK, those results are more than good enough for me to stop procrastinating and mod all of mine. Now they can stop being just wasted money and start being fun. Please report back on the 20° lens. Thanks for the motivation to finally move.

Super Fun!
now I wish I had not sold off my Cu SMini and Rainbow Ti S Mini, and and and…

Pebbled XM Tir Rocks w 219b…
I imagine with 519a the XM Tir will work even better

The Future Looks Bright!

btw, the 30 degree Tir is very similar to my FWAA beam, which I find more Floody than necessary… I definitely would suggest the 20 degree Tir instead…

left Ti SMini w sw30, right FWAA w sw35:

With shaved LH351Ds…
The 20° lens also works well.


Looks good jon_slider. Sand that MCPCB down a little and it be perfect. :slight_smile:
Nice mod, Olight really does have some terrible tints and hard to mod lights.
Big improvements all the way around. A 519a should get it back closer to the original output.
I know you’ll try it. :wink:

Makes me feel good that someone else is as Nit-Picky as me about beam appearance, even on white Wall. I mean I can get over some slight artifacts in the spill (although I love perfectly shaped beams more than anything else), but the black spot in the beam kills me. Cannot put xpl-hi in a seeker 2 pro bc the optic creates a black spot in the middle of beam with the domeless led. Even sst20 has a slight one. Xpl-HD have ok beam, but really floody with tint shift. The most perfect beam I have seen is Nichia 219b in the seeker 3 / 3 pro optic. Large, wide circle hotspot, no artifacts whatsoever, and not black spots. It's amazing.

Thanks! and I agree that a thinner mcpcb will let the bezel sit flush to the head…

I ordered some 4500k 519a from Convoy:

Your Olight mods helped inspire me to take the plunge. Really glad I did.


. :heart_eyes:

Awesome outcome, Jon. I really like that S-Mini.

The Olight resale market has really gotten weird… resale value for some models has shot through the roof. Looks like that may be a side effect of the brand having a kind of renaissance in the mass consumer flashlight market. Brand new titanium S1 sold for $230! I have that very light. I decided I’m not going to mod it. :wink:

me too, now that it has a High CRI LED and a clean beam :slight_smile:

ebay Olights are a greater fool topic. People get ridiculous prices for sealed boxes. Clearly they have no intention of actually using the light… they think Olights are an “investment”. :partying_face: