OSRAM CSLNM1.TG & CULNM1.TG 1mm², CSLPM1.TG & CULPM1.TG 2mm²

All non-liquid-metal thermal pastes are fine on aluminum, never had problems with MX-4 drying out, it’s been in my PC for like 5 years now and temps are the same.

On he other side, I had/have problems with MX-2, after few months it's completely dry? AS-5 was similar, dry after few months.

Why do you need such thermal pastes and extremes? This led gets the maximum output at low currents around 4.5A

I can’t wait to get mine!

Kryonaut is also known for drying up.

That’s exactly my question. :slight_smile:
We can discuss what is better and what is worse. But is the difference going to be 0.1, 1 or 10% with this LED? Anybody bold enough to make a guess or curious enough to try?

Meh, looking at the surface areas of LED board and shelf, this is like 100 times larger than the thermal slug of the LED.
And as long as there’s just a thin layer in between, so preferably with screws or other wise pressed down firmly, it will be fine.
Many tests have shown this.

The drying up seems like the biggest problem though.
Once the grease is dry, it will do a poor job.
So frankly, i think you could maybe better use silicone grease than thermal gunk that will dry up.

When you cool an LED more it gets its maximum output at higher currents and also outputs more lumens/lux.

Some quick calcs.
If the 980 lumens peak from Led4Power’s test is accurate we can expect almost 300cd/mm^2 out of this emitter.

I read that conductonaut affects bare aluminum not sure if this would be the best option for an aluminum flashlight.

Look here:

Yes I know it can’t be used on aluminum.

Holy cow, am I impressed with this LED. Just dropped one in a run of the mill Convoy C8. I need to adjust the reflector but this thing came alive. Wow. Just glad you guys are around or I would never have known the possibilities of this LED. Now I need to figure out what to put it in next.

How about the Maeerxu M8 26650 Usb Rechargeable

so, anyone has real figure about DD driver and low drain cell( ncr18650B, ncr18650GA, samsung 35e)
i am planning to put it to emisar D1s, what is the throw i can expect? half a mile?

I actually have one of those. I curious as to who makes a good spacer for this LED. I had to super glue one in place to hold it as close to center on a C8. It’s OK but could be better. Any ideas? Maybe the 3535 spacer modded. Hoping someone makes one.

I've been successful in glueing the typical 5050 plastic spacer of a Convoy S2+ around a 3535 emitter over its MCPCB. Just be frugal with the glue and/or clean any remainings around the emitter with an alcohol soaked cotton swab while you retain the spacer properly centered.

To my knowledge, there’s no spacer available yet. Did you see djozz’s makeshift spacer in the first post? He cut notches in a 3535 spacer to fit the 3030. Not perfect, but might be a better option than glueing.

Osram KW CSLPM1.TG (2mm2) is available now:

https://led4power.com/product-category/leds1/osram/

Kills XP-G2 in throw, while having 1500lm+ output, which is great for factory undomed 2mm2 LED with pure white tint. Vf is ridiculously low, 3V@3A,3.13V@5A,3.3V@8,5A.

Wait a minute.

I just received https://led4power.com/product/new-osram-kw-cslnm1-tg-1mm2-throw-king-bare/ to drive it on 3.6А in my 1405. I haven’t put it in yet.

What is this new led? Is the surface brightness higher? How can both be throw kings? Throw king can only be the one with the highest brightness.

Please if you can point me to a test or info, so I can see which one is the real king, because my 1405 is an ultradedicated thrower and only surface brightness matters. :slight_smile:

mdeni, that KW CSLPM1.TG looks to be the bigger die size brother of the KW CSLNM1.TG. If so, it is unlikely it will deliver more luminous intensity, just more lumens. May be a better choice for flashlights capable of delivering higher currents and dissipating heat faster.

Let's wait for led4power's further comments. :-)

Cheers

CSLNM1.TG - throw king in 1mm2 class (let's call it 1mm2 white flat)

CSLPM1.TG - throw king in 2mm2 class (let's call it 2mm2 white flat)

1mm2 one is "absolute" throw king if you compare cd/mm2, so if you want max. throw ->1mm2 white flat.

As usual,smaller die LEDs can be overdriven harder, 1mm2 white flat has peak output at ~5.5-5.75Amps, 2mm2 one has peak at ~8.5Amps, obviously 1mm2 can take more power per mm2.

BLF member luminarium can tell more about real life experience of both LEDs,since he built few lights with both LEDs.

hello, i’ve just put it in emisar D1S, got 80k cd reading @ 2 meters, so, really impressive, in theory it throws more than 1km