Yup!
I would guess the CSLPM will get similar intensity to the “new black flat” CSLNM and just more lumens.
The insulated center pad and no cut corner makes these LEDs really appealing, even if they don’t perform much better than the current ~250cd/mm^2 LEDs.
But of course I do hope that they perform a bit better.
I can’t wait for them to be available
=> A120: XP solder profile with neutral center solder pad
=> B120: smaller Osram (Black Flat, Square etc.) solder profile with neutral center solder pad
rated up to 3A
square die (not retangular)
brightness at 1.5A: up to 10.7% higher compared to XP-G2 S4, average might be closer to S3
Maybe 220-230cd/mm^2 are possible? Benefits here are that the new Luminus LEDs seem to be chaeap and easy to obtain. They also seem to still have a cool-white tint after de-doming.
Not too concerned with current capabilities, those long bond wires make it very hard for a clean de-dome. They tend to break when the dome releases during the chemical de-doming process. I went thru over 30 SST-40’s. Vinh gave up on them too, he just shaves them now.
I wish a purely chemical dedome would be easier with these, but I’m not holding my breath. I’ve had good luck with a combination of shaving / slicing / chemical dedome. Considerably more work, but still good results.
One thing to note here is that the way of measuring the die size is not perfectly accurate. It is usually done by carefully taking a picture and then counting pixels.
I noticed it a few months ago, but didn’t see any big benefits. The rectangular shape of the die is definitely a downside.
They do state the luminance!
Die size: 0.93mm^2
Real thermal resistance: typ 4.1cd/mm^2
Luminance at 700mA: avg 110cd/mm^2
Edit:
The Black Flat is 20% larger, but only does 66cd/mm^2 at 700mA. So the Nichia might actually be really good if one can live with the die shape! Thanks Schoki!
Edit2:
The weird thing is that it’s a 6V LED! This makes it easier to drive the LED to its max in single cell lights, there are good boost drivers available.
I wonder how far apart the two dies are. This could ruin the beam with smo reflectors.
OK, so let’s consider the dies separately, so we can compare with Blackie a bit better.
Half-Nichia:
.465 mm² die. 110 cd / mm² at 1.5 A/mm² and 5 W/mm².
Blackie:
1.122 mm² die. 110 cd / mm² at 1.25 A/mm² and 3.85 W/mm².
Nichia has a bit better thermal resistance, but it doesn’t seem to be enough.
Also, its LES is significantly higher than die size in case of Nichia.
So probably not too good….