Future development of the maximum luminance of LEDs

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twisted raven
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Ordered 5! Sending them to Vinh.

So hypothetically, how would this compare to the Black Flat? From my understanding it’s 1000 lumens vs 800 lumens with same die area?

Agro
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Blackie did 937 lm on a bench, this does 980 on a different setup. So it may be actually worse, but more likely it’s a bit better. Don’t expect big gains though.

twisted raven
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That’s too bad. Can’t wait for the Boost though.

Enderman
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Just bought 5 of them Smile

Looking forward to seeing the CULPM1.TG (Boost HX) in the future!

nottawhackjob
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led4power wrote:

nottawhackjob wrote:
led4power wrote:

 It is CSLNM1.TG, I will put them on sale in few hours. Better be fast because next batch could be in 2-3months, this is new LED so production is started just recently.


Vf is insanely low for 1mm2 die LED, 3.18V@3A and 3.40V 5A, 25C.</p> <p>BLF member luminarium iaculator already tested this LED in real life vs best old XP-G2 S4 - it beats XP-G2 in throw, that's for sure.</p> <h1 class="product_title entry-title">&nbsp;</h1> <p></blockquote> I presume he just drove the XPG2 at the same levels for 1:1 throw comparison. I wonder how the XPG2 would fare driving it up incrementally until it hit its limit at about 6 amps? Or to just cut to the chase, compare them when both are driven up. Btw while on that topic do ya know about what's the amp limit on this LED?</blockquote></p> <p>Numbers he told me are next (host is 1503 Uniquefire):</p> <p>XP-G2 S4 (old ones with small die) : 245kcd&nbsp; 4.7A


CSLMN1:                                           315kcd  @5.3A


 

Thanks, Ledpower.

Looks linearly roughly about a 14% more candela efficient LED per amp.

“In many things in order to truly understand the small picture you have to understand the big picture first.”

Jerommel
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Neven, i don’t see any mention of colour temperature of this TG.

[edit]ordered 3 pcs anyway. Beer

Enderman
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Probably 6500K as usual, just like the black flat.
You can check the datasheet for the cct and that kinda stuff.
https://media.osram.info/media/resource/hires/osram-dam-5515672/KW+CSLNM...

LichtAn
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Agro wrote:
What 5A 3V constant current driver options are there for e-switch lights? 14*AMC7135 doesn’t sound appealing. More like appalling really.

Yeah I was thinking the same thing. I ordered 3 but wonder how to actually drive them properly. To add on top of this, I’d like to run them in a 15mm host. I guess 5×7135 is my only option since FET kills it instantly?

@led4power just sent you an order change request, didn’t see the reflowed versions somehow. Big Smile

kikkoman
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The CIE coordinates for the ebxD46 bin translate to ~5800-6300K.

Jerommel
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LichtAn wrote:
Agro wrote:
What 5A 3V constant current driver options are there for e-switch lights? 14*AMC7135 doesn’t sound appealing. More like appalling really.

Yeah I was thinking the same thing. I ordered 3 but wonder how to actually drive them properly. To add on top of this, I’d like to run them in a 15mm host. I guess 5×7135 is my only option since FET kills it .


You could get the LD2 driver from Convoy store or Fasttech.
All parts on 1 side, 3 modes 3 Amperes CC FET driver.
No PWM.
Resistor mod possible, drive this Osram at 4 – 5 Amperes.
LichtAn
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Jerommel wrote:
LichtAn wrote:
Agro wrote:
What 5A 3V constant current driver options are there for e-switch lights? 14*AMC7135 doesn’t sound appealing. More like appalling really.

Yeah I was thinking the same thing. I ordered 3 but wonder how to actually drive them properly. To add on top of this, I’d like to run them in a 15mm host. I guess 5×7135 is my only option since FET kills it .


You could get the LD2 driver from Convoy store or Fasttech.
All parts on 1 side, 3 modes 3 Amperes CC FET driver.
No PWM.
Resistor mod possible, drive this Osram at 4 – 5 Amperes.

https://www.fasttech.com/products/0/10001997/1143103-1-lithium-2-group-3-5-mode-2-6a-led-flashlight

this one?

Jerommel
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Enderman wrote:
Probably 6500K as usual, just like the black flat.
You can check the datasheet for the cct and that kinda stuff.
https://media.osram.info/media/resource/hires/osram-dam-5515672/KW+CSLNM...
Yeah, they give the chromaticity coordinates but i’m not able to look up what it means in Kelvin.
(on my phone in France a.t.m.)
It’s probably cool white…
Jerommel
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LichtAn wrote:
Jerommel wrote:
LichtAn wrote:
Agro wrote:
What 5A 3V constant current driver options are there for e-switch lights? 14*AMC7135 doesn’t sound appealing. More like appalling really.

Yeah I was thinking the same thing. I ordered 3 but wonder how to actually drive them properly. To add on top of this, I’d like to run them in a 15mm host. I guess 5×7135 is my only option since FET kills it .


You could get the LD2 driver from Convoy store or Fasttech.
All parts on 1 side, 3 modes 3 Amperes CC FET driver.
No PWM.
Resistor mod possible, drive this Osram at 4 – 5 Amperes.

https://www.fasttech.com/products/0/10001997/1143103-1-lithium-2-group-3-5-mode-2-6a-led-flashlight

this one?

No, this one:
https://m.fasttech.com/products/4594600
luminarium iaculator
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nottawhackjob wrote:
I presume he just drove the XPG2 at the same levels for 1:1 throw comparison. I wonder how the XPG2 would fare driving it up incrementally until it hit its limit at about 6 amps? Or to just cut to the chase, compare them when both are driven up.

Btw while on that topic do ya know about what’s the amp limit on this LED?

Hey guys!

Yes… I am happy(well if I consider I am not that happy but this is life) to announce that Good old XP-G2 S4 2B is beaten!

So real life test was done with same flashlight in direct comparison with XP-G2 S4 2B dedomt (picked) vs new Osram non picked…

Test showed that at only 3.3-3.5A draw it had same performance as g2s42bdd at 4.8A (yes you heard that right). So if someone goals for runtime just bring old forgotten linear drivers in function with new Osram emitter for a lot longer runtime then we are used to Thumbs Up

I would not hesitate to use it on single cell FET drivers also… Yes… But only with low current cells like LG BD118650 or those Panasonic or Sanyo GA.

It will pull around 5.5A on low current 18650 and more than 7.15 on Samsung 30q so beware since it starts to loose performance on more than 6A.

It is robust… I tortured it for 2 minutes with Samsung INR 30Q on more than 7A current draw… It does not go to angry blue or something like that. Acts normal but with lux drop…

You will like it, although some may have problem with re flowing cause it is not perfect fit to XP board but since L4P have reflowed versions on his DTP’s you can just order plug and play product Smile

BTW did I said that L4P DTP is better than Noctigon on single cell FET driver lights? Yes it is! Constant 4.7-4.8A performance for XPG2S42B DD while on noc same emitter pulls “only” 4.3, 4.4A… But only in that configuration… In any other they could perform same.

This are test in well known hosts:
Brinyte B158 430kcd!
Mitkos super thrower 430 kcd!
Copyfire 50mm glass aspherical lights 300kcd!

What to say now? Question Oh yes… Bye bye Cree try to beat that Big Smile

Oh to add something here: De doming… De doming? What a F is de doming? De doming bye bye Smile

Oh I am not really that happy as I sound… Time when you needed dedoming skills, emitter cleaning skills and any other necessary skills are pretty much gone Sad even kid could make super throwers with this emitter so that maybe means game over for some diy moddersellers like myself?

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The original XP-G2 was beaten by the black flat like years ago…
This isn’t really news Smile

luminarium iaculator
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Enderman wrote:
The original XP-G2 was beaten by the black flat like years ago… This isn’t really news Smile

Black flat sucks if I compare it to XP-G2 cause you had to pick 1 out of 5 or 10 to beat s42b if I remember right… But it seems that with new little Osram guy we can only expect greater performance than on my redneck test Beer

And most important:
“The biggest difference compared to BLACK FLAT is thermal pad, which is ELECTRICALLY NEUTRAL, this means you can use this LED with any standard XP DTP boards – there is no need for LED PCB/driver GND isolation!”

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luminarium iaculator wrote:

Black flat sucks if I compare it to XP-G2 cause you had to pick 1 out of 5 or 10 to beat s42b if I remember right… But it seems that with new little Osram guy we can only expect greater performance than on my redneck test Beer

I bought 10 but only ended up testing two and picked the better one.
If you’re driving it hard enough it will always beat the XP-G2.

The improvement that the CSLNM1.TG brings is no cut corner and neutral thermal pad and slightly better performance, but the black flat was still better than any other LED years ago.

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Enderman][quote=luminarium iaculator wrote:
The improvement that the CSLNM1.TG brings is no cut corner and neutral thermal pad and slightly better performance, but the black flat was still better than any other LED years ago.

I can only agree that I disagree with you… But hey! Ok if you think that Black Flat was better than XPG2S42B DD… But not in my book and in my modds.

Black Flat and s42b is past anyway and they are screaming for swap with new Osram …. something emitter(ah yes CSLNM1.TG for god sake Smile )

Osram white flat?

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luminarium iaculator wrote:
… something emitter(ah yes CSLNM1.TG for god sake Smile )

Osram white flat?


Boost HX is it’s short name I think.
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ZozzV6 wrote:

Boost HX is it’s short name I think.

No, that one is the CULPM1.TG, it is bigger and outputs more lumens.
Unfortunately it is not available yet, only recently been announced.
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Aah. Just confused me the very similar look.

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Compares something like this I think.

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CRX wrote:
Compares something like this I think.
!{width:60%}https://i.imgur.com/IoozguJ.png!

Nice comparison.

ZozzV6 wrote:
Aah. Just confused me the very similar look.

Yeah, the stupid names are super confusing.
Osram needs to have a better naming scheme like cree does.
Agro
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So it should be ok with DD from Aspire 18350. Smile

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Agro wrote:
So it should be ok with DD from Aspire 18350. Smile

Yes, this led in smaller lights can be direct driven.
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Hmmm… i think it’s 3.40 Volts at 5 Amperes..
Wouldn’t want to confront it with the full blast of a freshly charged Aspire 18350.

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djozz wrote:
Agro wrote:
So it should be ok with DD from Aspire 18350. Smile

Yes, this led in smaller lights can be direct driven.

Are you sure?
The VF-current chart looks like it could reach 10+ amps with a fully charged cell.
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Enderman wrote:
djozz wrote:
Agro wrote:
So it should be ok with DD from Aspire 18350. :)
Yes, this led in smaller lights can be direct driven.
Are you sure? The VF-current chart looks like it could reach 10+ amps with a fully charged cell.

At 5A discharge, the Aspire 18350 (HKJ's chart below is from the Vapcell version) starts at 3.7 V, going down from there during drainage of the battery. Assuming that the tailspring in your flashlight build is not bypassed, at 5A the spring alone will already cause more than 0.2 V voltage drop, the last 0.1 V will surely be lost elsewhere in the current path.

 

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djozz wrote:

Enderman wrote:
djozz wrote:
Agro wrote:
So it should be ok with DD from Aspire 18350. Smile
Yes, this led in smaller lights can be direct driven.
Are you sure? The VF-current chart looks like it could reach 10+ amps with a fully charged cell.

At 5A discharge, the Aspire 18350 (the chart below is from the Vapcell version) starts at 3.7 V, going down from there during drainage of the battery. Assuming that the tailspring in your flashlight build is not bypassed, at 5A the spring alone will already cause more than 0.2 V voltage drop, the last 0.1 V will surely be lost elsewhere in the current path.


 


Under .9V for intl-outdoor springs in Emisar D1. But with thin wires this should be correctable. Thumbs Up
I wonder what’s the IR of Folomov 18650…
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Yeah, but with optimized electrical path and a CC FET driver you will have the maximum output for quite a while.
Run it at 4 – 4.5 A and it will be longer with probably not much less output.
Is there a test of this LED on the forum yet?

Didn’t know (or remember) the Aspires sagged that much though.
With cheap springs you can apparently get away with it.

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