Cree, Luminus, Seoul Semiconductor, and Nichia LED comparison

Adding it now, thanks OL!

Do you guys think I should add MC-E/SST-50/SST-90?

I have SST-50 and SST-90, and don’t know anything about them. SST-50 neutral.

My LED comparison thread with links. Scaru - this links to Illumination supply.

I think the SST-90 & 50 should be there, since they are still valid leds and still used. Probably the MC-E as well, but less so, since it's about dead.

Oops, I guess I had the wrong thing in my clipboard. Thanks for pointing that out OL. :) I just added the MC-E and I'll do SST-50 next.

A writeup on the SST-90 would be worthwhile. It’s wicked bright!

SST-50 added.

http://www.luminus.com/products/datasheets/Luminus_SST-90-W_Datasheet.pdf

http://www.luminus.com/products/white_56_2186693088.pdf

2 different data sheets on the SST-90, with graphs, if you need them.

Thanks, I already found them though. But in other news, SST-90 has now been added. :D

Any more suggestions on LEDs to add?

Thanks…pretty helpful.

Killer info, Scaru. But I would put an addendum on the SST-50 entry. I have watched my chief of police buddy in Virginia show off his, and without a doubt, most of his 800 lumen+ SST-50s died — all except one. Selfbuilt (I think) reviewed the M31 Triton and called it the brightest SST-50 made. I have searched far and wide and what I found seems to confirm what our own 2100 said about this emitter: that on paper it does well, but not in real life. I have yet to see one of these really excel, and doing so would require a chunk of an engine block for heatsinking and active cooling like in the Microfire Pioneer II version…

I guess it is little wonder why Olight opted for the SR51 (a U2 XM-L) over SR50, knowing this.

Adding that now. :D

To get a high-CRI LED generally requires an increase the the red part of the spectrum. Rather than tweak the phosphor mix to get the red boost by converting more blue light to red, most makers seem to be adding a material to the phosphor layer that filters out part the non-red part of the light. That is why high-CRI LEDs are not as efficient as normal ones.

Is wikipedia wrong then?

" If several phosphor layers of distinct colors are applied, the emitted spectrum is broadened, effectively raising the color rendering index (CRI) value of a given LED."

Or does that simply mean that is one way of doing it?

MT-G2 added. :D

Spelling and grammar mistakes have been fixed. :)

Those are XPG, not XPG2.

Oops, you're right. I just checked and no one has the 90 CRI XP-G2 in stock yet.

The problem with boosting the red with phosphors is the conversion from blue to red light tends to not be very efficient and the phosphors are expensive and hard to work with consistently. It is cheaper and more efficient to do the conversion with filtering agents. Or at least that’s how it was explained to me by an LED research guru.

Ok, I'll change it.