Talk about future projects and donation topic

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Jinx
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Yeah I have the Dc fix over my S41, not a great difference but I have left it on.

A BLF project used to be a nicer tint and a current boost, now it seems to be a complete ground up project pushing boundaries. I hope there remains room for both, I don’t have the time or inclination to do even minor mods unfortunately.

I’m still preferring the TIR option if I’m honest, I carry the S41 over the Q8 for walking.

If I go to the Q8 it replaces the C8, if I want more throw I take the Maxtoch (soon a GT hopefully). The constant always remains the little TIR for its great close range beam.
The TIR isn’t all to credit, the Nichia’s certainly help. The beam profile, tint and CRI all combine to make it useful close range.

DavidEF
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Agro wrote:
I drew another light that I want today….

driverless 10180 thrower based on Osram SYNIOS P2720 DMLQ31.SG and Khatod PL1670UN.
I don’t have any 10180 discharge curves so it’s hard for me to predict the output.
Theoretically, if the LED was driven to the peak level we see on koef3 charts and was cooled as well, it would do ~37 kcd.
I guess estimating 20 kcd is conservative enough.

Yes! I want a 10180 thrower! It should be fully optimized for throw by using a tiny emitter with good brightness (brain fart – I can’t remember the right word) and a very well machined smooth reflector. Let’s build it! Party

Edit: I just realized that I missed what you were saying almost entirely. I guess I turned off reading comprehension after “10180 thrower… “ I don’t really want any flashlight that doesn’t use a driver. I’m not familiar with that emitter or that optic. Can you tell me a little about why you chose those?

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
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Agro
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The LED is the current throw king:
http://budgetlightforum.com/node/58016
It puts out small but useful enough 450 lm (peak, probably not possible with 10180).

The optic is a very throwy one and has the right size. A reflector should work well too, but I found precisely 0 intensity measurements coming from manufacturers, so I use TIRs in my drawings. I may use Endermann’s calculator though…

Frankly, I don’t know whether driverless is a good idea.
This LED had a very low Vf. It’s totally unsuitable for direct drive with moderately sized batteries, but 10180 may not blow it. It will be hard on battery and hard thermally. A regulated driver might be a good option, but it will take a lot of space, 2-sided for sure. A FET driver will be smaller, but when doing FET why don’t go all the way and make it driverless?

EDIT: I see very roughly 40 kcd with the calculator, again at peak intensity.

DavidEF
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Agro wrote:
The LED is the current throw king:
http://budgetlightforum.com/node/58016
It puts out small but useful enough 450 lm (peak, probably not possible with 10180).

The optic is a very throwy one and has the right size. A reflector should work well too, but I found precisely 0 intensity measurements coming from manufacturers, so I use TIRs in my drawings. I may use Endermann’s calculator though…

Frankly, I don’t know whether driverless is a good idea.
This LED had a very low Vf. It’s totally unsuitable for direct drive with moderately sized batteries, but 10180 may not blow it. It will be hard on battery and hard thermally. A regulated driver might be a good option, but it will take a lot of space, 2-sided for sure. A FET driver will be smaller, but when doing FET why don’t go all the way and make it driverless?

EDIT: I see very roughly 40 kcd with the calculator, again at peak intensity.


For me, the driver is desirable in order to get a nice UI. I wouldn’t necessarily want max output at all times either. It’s not so much about “regulation” as it is about “control”. I’m a little bit of a control freak, and I like having choices. It would also be insanely cool to have the NarsilM smooth ramping on such a minuscule light. That, coupled with it being classed a “thrower” would make it truly over-the-top!

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
-Ayn Rand

patmurris
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I would also love a 26650 D4 or mini Q8.
With four XPLs it should do 4k+ lumen.
Onboard USB charging would be nice too.

Which optic/reflector remains a good question. The D4 TIR is too floody IMO. The Q8 beam is just right to my taste. Can it be shrunk and maintain some throw?

JasonWW
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patmurris wrote:
The Q8 beam is just right to my taste. Can it be shrunk and maintain some throw?

I would think the C8F triple reflector would be pretty close to the Q8. My guess would be a little bigger hotspot, so not as good throw, but still good and much brighter spill than a TIR. Here is a video of the C8F xpl to see the beam. Video by DB Custom.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

Texas_Ace
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For the record, in my testing I always got the same or slightly better throw from TIR optics vs reflectors of the same size.

Assuming the TIR was properly match to the LED is use that is.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

JasonWW
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Texas_Ace wrote:
For the record, in my testing I always got the same or slightly better throw from TIR optics vs reflectors of the same size.

Assuming the TIR was properly match to the LED is use that is.


How was the spill brightness? I was really hoping to find a TIR setup that could come close to a reflector as far as beam proportions, hot spot size to spill brightness.

EDIT, I changed post 487 to better reflect what I was trying to say.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

Texas_Ace
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TIR’s give you a larger hotspot then a reflector but that doesn’t mean less throw, they are simply better at collimating the beam.

I have dozens of TIR’s laying around here and I have tried all sorts of combos. The spill is usually better then you would expect unless the optic you got is specifically designed to not have any spill.

Unlike reflectors TIR’s are designed for a bunch of use cases and a whole lot more then size factors into what they give you.

In my case I did a lot of testing for my EDC tube light.

As a rule, the TIR gave more spill close to the hotspot, then there was a small area near the edge of the reflector beam where the reflector spill was slightly brighter. After the reflector spill cutoff though, the TIR spill kept going, just getting dimmer.

I prefer TIR optics in most cases, the beam is more pleasing.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

Enderman
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Also someone mentioned frosted TIR, this second image is sorta what you will get if you diffuse it:
http://budgetlightforum.com/comment/1244719#comment-1244719
Almost no hotspot and very nice spill, great for close range use.

Kingjohn
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How about a really tiny lamp, using one AA cell or a 14500.

Similar to a UTorch 01, but with a better interface, and maybe a little more power…?

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