Luminus SST-70, a sample tested

My guess was based on very rough eye-balling, so I’m sure your calculations tell the better story :slight_smile:

I’m in progress of building a Manta Ray C8.2 2S with LD-B4HV driver and XHP50.2. I would love to try this LED out for increased throw….

KD says in stock for a 7500K emitter, $6.80 sounds pretty ok.
link

It’s a pity it’s 7500K. I’ll probably buy one and test it anyway…

Uh 7500k…

It’s really easy to see that the SST-70 is a very new LED, meaning to achieve high brightness bins, you need a high CCT to achieve them.

No go for me with that color :(

djozz thanks for the testing. Since the die is closer in size to XHP-35, it would be nice to see testing at 12V, with a chart comparing XHP-50.2 also at 12V, and XHP-35, which is only available in 12V. That way, we could see where the SST-70 really falls between those two regarding output, voltage, and current. Is there any chance of that happening? :innocent:

No :innocent:
I do not have enough energy/time/dedication etc. to do all that. Even if I would promise it I will probably keep doing fun stuff first and this will end up nowhere (I have broken a few promises in the past, could not get myself doing it).
We need a HKJ of led testing for that, who is never tired of doing vast amounts of tests. Me I just pick out a promising led every now and then.

Well, thanks for taking the time to give an honest and respectful answer. And thanks again for the testing you’ve already done, both on this and other LEDs. :wink:

:+1:
I would love such a never-tired led tester on BLF who has all the fancy equipment and produces new led-tests weekly of every led that hits the market. We are really blessed with HKJ, who is around this forum for longer than I and has done soooo much work over the years.

I did a fraction of what djozz and maukka do for some LH351D LEDs and could barely bring myself to do it. It’s so tedious but it really is helpful and referenced for years

Edit djozz's chart, halve the x-axis current figures and double the y-axis voltage ones. Done. ;-)

On the other hand, being this an early sample test, should we expect some sort of improvements?

Hope for some high-CRI versions soon.

djozz, thanks for everything you do. You don’t owe anyone any of it, so it’s awesome that you take time to provide us the data.

Hopefully this will see HCRI, same as Luminus is rumored to have planned for SST40

A curio of this emitter: all dies are unequal. Upper and lower dies are different, being each side a mirror reflection of the other. Comparatively the XHP50A die is composed of 4 equal (XP-G2?) dies laid each at a different cardinal angle: 0°, 90°, 180°, 270°.

Tue, 09/24/2019 - 05:48

These are not even mirror reflected. The upper ones have both terminals at the same edge while the lower ones have them at adjacent edges.

I didn't mean it to be interpreted that way Agro, so I edited my post. Each side is a mirror reflection of the other, plus above and below are different.

A unique footprint which allows to know at which angle of rotation is the emitter when zoomed in an aspheric build. O:)

I removed “early” from the title and the OP because with a flashlight mod already shown and KD having stock, the SST-70 seems so much around that I guess that I tested a normal production sample.

Hope they make a 3v version of this die, would love to upgrade some of my old throwers with it.

Will this led fit on a XHP-35 MCPCB?

It is a 5050 led while XHP35 is a 3535 led.

Thanks Djozz!