Future development of the maximum luminance of LEDs

This is what Vinh (Skylumen.com) said about the White FLat.

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Oh….

Funny, I just impulse bought 4 of the CSLPM1.TG from mouser last night. Looks like I bought the first 4. Can anyone tell me how the mouser bin compares to the ones available from led4power? I couldn’t make sense of the order code.

From L4p you can get 5P bin. From mouser - random bin from 7N to 6P.

Any numbers with this LED yet?

Jeez how is led4power getting all these super high bins… :open_mouth:
Now I need to buy this led too!

Still more excited for the CULPM1.TG though, but that’s probably months away, nothing shows up yet:
https://octopart.com/search?q=KW%20CULPM1.TG&start=0

I need to update the table in the first post. It would be good if we had some actual Luminance values though.

I’m still waiting on my CSLNM1 LEDs to arrive :frowning:
I wanna see just how much I can get out of it with some extreme cooling.
7 or 8 amps peak maybe? :stuck_out_tongue:

Peak could be anywhere between 8-10A but it will easily pull over 13A without exploding on fet driver :slight_smile:

I did some classic redneck style test here

I like it. Wide screen TV 16:9 format LED emitter :slight_smile:

Wow, it pulled 13A with a single cell? That is an impressively low Vf, even the 219C 90cri only pulled around 10-11A.

How does it compare to the flat black / flat white in throw?

Same or even better in throw than white flat 1mm with more lumens and wide screen tv die projection :slight_smile:

Edit: Why I said it may be better than white flat 1mm? Because I can not measure that with mine fet driver configuration since it pulls a lot of current and thus generates a lot of heat which could have influence on performance.

Some regulated configuration in multi cell lights with better cooling potential will show real nature of this emitter.

If I would have to place a bet who would win between 1mm or 2mm White Flat I would place a bet on this new White Flat 2 mm.

Since it is not suitable for my fet driver single 18650 light configuration I am really looking forward for real builds BLF members will bring with this new White Flat 2mm.

Comparison pic between new White Flat 2mm(sorry I really can’t remember full name) and XP-G2 S4 2B DD

It’s the same LED technology but with just a bigger die.
Since the physical size is the same it will always perform worse than the smaller emitter because it has a larger die area and therefore requires more wattage to achieve the same cd/mm^2
More watts and same cooling pad area = worse performance as you increase the current.

The boost HX aka CULPM1.TG which has a physically larger size has the chance to perform better.

The datasheet says the die is 1.59:1.25, (1.272:1) which is 12.72:10. Much closer to 4:3 regular tv aspect ratio (1.33:1) than 16:9 widescreen. (1.77:1)

:slight_smile:

Maybe reason is this?:

https://budgetlightforum.com/t/-/54055

I am not able to keep up with the latest developments in LED tech now days. If ya’ll find the “perfect throw king” LED let me know.

I have a few lights that might work well with a super thrower LED like these if they pan out.

Yeah probably.
Some of my international packages came in, others no.
It will just take a long while, not your fault.

Yes that happens in mine host. But for couple of seconds mine tested White flat 2mm at 9-10A has same or slightly better performance as tested White flat 1mm driven at 5.8A.

There is still that 10% of lux variations that can happen between emitters so if you got worse 1mm and better 2mm wf could actually win imho.

So this is obviously emitter for someone like you Enderman. Better cooling methods etc… Really don’t know why you don’t have wish to try it. You will have to wait for a long time until HX appears :slight_smile:

The transient temperature response will be completely different for both LEDs.
The reason the 1mm is getting worse performance is probably because 5.8A is past the peak of the output curve, while the 2mm is still not at its peak at 9-10A.
The proper way to compare them is to put them on a proper CPU heatsink, make current-output curves to find the peak of the curve (at steady state obviously, not only after a few seconds), and then compare the peak luminance at those peaks.

Once the post strike in canada finished I will immediately buy a few CSLPM1.TGs to test and I’ll show you what I mean.