Convoy S2+ Mod - Osram Cslnm1 - 5 Degree Tir - Fet driver - 430m throw

I still suggest to you all to try the YD5050 emitter with the ’ center sand ’ xml 5° optic. Smooth, zero artifacts, 45kcd, over 1000 lumens.

Looks like a tiny hotspot with a huge corona, whereas the reflector has a larger, more diffused hotspot but less corona? That probably explains the larger beam but higher candela rating.

More light where you’re aiming, less light and more diffused light at your peripherals. That’s what makes TIRs cool for throwers.

I think that too,the initial idea was to use the 18350 tube,so the current will be limited,but then I’ve seen that with the p26a the throw was even further.I Will do another one with the 5A driver,even if It push a Little less throw I will have a regulated driver,much better!
I’m waiting for the YD,will do a comparison when ready :money_mouth_face:

I had the fear that this was the case at first start with the gasket on,usually there are a lot of artifacts,instead this is so clean that I don’t touch It anymore and I will do another one with 5A driver and another with Yinding led to see what happen :smiley:
Thanks all for the appreciation

Noted JaredM, thanks!

Very nice! I’ve wondered how that LED would work with that TIR, now i know! Thanks :slight_smile:

Agreed, NM1 on FET will let you `see` its piss*d off. Got me chuckling.

That 5A is no longer perfect since it was altered to now be 5.5-5.7A

Did you remove the reflector or is the TIR sitting inside?

Maxchaos92, is the lens you used the standard 5 degree TIR sold on the Convoy AE store? I'm looking forward to your tests with the 5A driver, please post here with your results.

I assembled a similar build with reflector. I recall having to thin the gasket to get a nice, tight hotspot in the smooth reflector. Mine has the ring on the periphery as well, which I find annoying.

I’ll have to try the TIR. That looks great!

Didn’t try to do reflector+Tir, Will see later if It fits, for now it’s only TIR directly on the led.

Yes It is! Already ordered the 5A driver,and another s2+ so I can test together and see what works better :smiley:

Thanks for this info. I think I heard this reported elsewhere that the current has been climbing with successive batches. I didn’t know it’s gotten that high.

My original run of red 5A drivers push right around 4.3A.

Maybe these new ones will need a sense resistor mod to bring the current down a bit.

I replaced my smooth reflector with a TIR. I think it’s 5 degrees, might be 10 (I ordered a mix of 5, 10, and 15 and they came in unmarked packaging :person_facepalming: ).

I spent about 45 min trying to get a good focus. I ended up using a gasket, the bowtie kind, with one layer of electrical tape to raise it up a hair. I’d measure it but now that it’s focused I’m too afraid to take it apart.

There’s a slightly dark donut hole around the hotspot, but the hotspot is very clean aside from faint flower petals. It’s very throwy but unfortunately I don’t have a lux meter to confirm. I do like it. Thanks for the inspriation, maxchaos92.

I’m expecting some YD5050s to arrive any day now. Looking forward to trying those.

That’s my fear too,so I’m building a new one,my hotspot is similar to yours with a Little dark spot at closer distance,this is what throw the most from what I’ve tested in mine.My tir have a clear ring under the convex shape that I think work wonders as a spacer,with a spacer under the tir,the led is really far from the tir and don’t work nor looks good :expressionless:
Let me know if you like the YD

A convex (zoomie) lens on top of a reflector seems like the best way to get maximum candela in a small package.

Like these , the 20mm will probably fit the S2+ there is 19.8mm and 20.2mm with different focal length, both will probably fit so you have a choice between more focus or smoother beam.

See this example from the reviews on these lenses:

Hideous beam hmm actually on second thought it looks kind of cool, but you get the idea, heavy beam artifacts.
This is why zoomies dont use a reflector which is also why they lose so much output when you zoom them (i.e increase distance between emitter and lens)

Just ordered one as I’m really curious about , will share the results.

Link?

No luck finding that. Would appreciate a link as well.

Are you talking about matte/frosted optics?

I tested some convex lenses.
The beam has to be perfectly focused to get an intense beam.
I could not get a very intense beam with 19mm lens at all.
I order a larger 30mm lens too, this one can actually give a significant boost to intensity when properly focused.
The beam looks really awful because of ugly dark ring between ‘hotspot’ (square projection of emitter#) and ‘corona’ (reflector projection) unfortunately, but the corona itself looks surprisingly ok if not for this ring…

So a really big lens, and therefore host, is needed for convex lens to be very effective.
These results were probably very predictable for anyone well versed in physics, was a fun experiment none the less.