Phlatlight SSM-80
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That would make it a bit awkward as you'd need a buck/boost driver instead of just a buck or just a boost driver.
This LED looks like it is primarily for the luminar market, which
is a new market area for Luminius. The higher voltage means
that the major electronic components can be smaller and less
costly. As far as flashlight applications, the output pattern should
be similar to the Seoul P7 and the Cree MC-E LEDs. I would
wait for the new Cree XK-? next year. A single 2.6/2.8 mm,
3.0 volt 7 Amp chip. Output should be in the 1600-2200 Lumen
range.
Curt
is a new market area for Luminius. The higher voltage means
that the major electronic components can be smaller and less
costly. As far as flashlight applications, the output pattern should
be similar to the Seoul P7 and the Cree MC-E LEDs. I would
wait for the new Cree XK-? next year. A single 2.6/2.8 mm,
3.0 volt 7 Amp chip. Output should be in the 1600-2200 Lumen
range.
Curt
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LilKevin715
Enlightened
Anyone care for a doughnut?
Spacing between the dies appears closer compared to the MC-E and P7, so with a correctly designed reflector it shouln't be a issue in a flashlight application.
Spacing between the dies appears closer compared to the MC-E and P7, so with a correctly designed reflector it shouln't be a issue in a flashlight application.
bstrickler
Enlightened
You're joking about that form factor, and drive level, right?
Joking about what? That is a simple extension of the difference
between the XP-G and the XM-L. The SST-50 is the same die size
but has less output per sq mm than the SST-90 at the same drive.
The Cree lab hit 200 Lumens per watt a year and a half ago and just
announced 231. The SST-50 is older than the SST-90 and that one
is over four years lab tech old. Companies do not put the latest
technology into established LEDs, only new ones.
I made the same remarks about the XM-L a year before it was
announced, except that I thought it would be called the XN-I.
The XK-? performance guess is just simple logic.
Curt
between the XP-G and the XM-L. The SST-50 is the same die size
but has less output per sq mm than the SST-90 at the same drive.
The Cree lab hit 200 Lumens per watt a year and a half ago and just
announced 231. The SST-50 is older than the SST-90 and that one
is over four years lab tech old. Companies do not put the latest
technology into established LEDs, only new ones.
I made the same remarks about the XM-L a year before it was
announced, except that I thought it would be called the XN-I.
The XK-? performance guess is just simple logic.
Curt
srfreddy
Enlightened
But the XML does 130ish lumens a watt, and is 3 amps for its 3/4 mm^2 die size (can't remember), so how would an led in between the XML and XPG do 7 amps? And the SST-50 is 5mm^2, the SST-90 9mm^2. So at the same drive, the SST-50 has more output per Sqr. MM.
Last time I checked 2 x 2 = 4mm square, the XM-L is 2 x 2 = 4mm square.
That makes the new XK-? twice the size of the XM-L and 4 times the XP-G.
Also the XM-L can be driven at 3.5 Amps with out harm. Typically electronic
components have a built in 25% head room over the Max ratings on their spec
sheet.
The SST-50 has more output per square mm at the same drive level, but has less
total Lumen output at the same drive level. I was talking about power in vs.
Lumen output, not efficiency per surface area in regards to the Luminus products.
I should have made that more clear, my mistake.
That is also true of the XM-L vs. the XP-G vs. the XR-E. The larger the surface
area allows for more thermal transfer and a higher output as the drive current is
increased over that of the smaller die, even thou the surface brightness decreases.
As the XM-L eclipses the P7 and MC-E, the next Cree will do the same to the SST-50.
Curt
That makes the new XK-? twice the size of the XM-L and 4 times the XP-G.
Also the XM-L can be driven at 3.5 Amps with out harm. Typically electronic
components have a built in 25% head room over the Max ratings on their spec
sheet.
The SST-50 has more output per square mm at the same drive level, but has less
total Lumen output at the same drive level. I was talking about power in vs.
Lumen output, not efficiency per surface area in regards to the Luminus products.
I should have made that more clear, my mistake.
That is also true of the XM-L vs. the XP-G vs. the XR-E. The larger the surface
area allows for more thermal transfer and a higher output as the drive current is
increased over that of the smaller die, even thou the surface brightness decreases.
As the XM-L eclipses the P7 and MC-E, the next Cree will do the same to the SST-50.
Curt
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You're claiming:
XK-? = (2mm)^2
XM-L = (1.4mm)^2
XP-G = (1mm)^2
But for the two of those that are real, you're off by sqrt (2):
XM-L = (2mm)^2
XP-G = (1.4mm)^2
XP-E = (1mm)^2
So your prediction of an XK-whatever should be a 2.8mm die, (8 mm^2), and then I think people will be much less skeptical.
bstrickler
Enlightened
Oh! I thought you were talking about 2sq mm surface area. I was gonna say, that's gotta be one hell of an increase in efficiency.
~Brian
~Brian
srfreddy
Enlightened
Thats what I thought too.... I also read your comment about an XK-? led as being the extension of the difference between teh XPG and XML as being in between the two. My fault. And the XML is 4mm^2.
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