WooWoo! My XP-L HI order has just shipped from Mtn. this afternoon! I'm looking forward to getting these in...
@Mr. Nobody: just buy the triple from Mtn once they are back in stock; you know you will want more than one, and that way, you get three, then you can just reflow onto whatever size PCBs you want.
I've got a couple of projects I'm working on with these; one of the triple boards is going into a DD-FET S2; I'm using the additional board to salvage emiters. One to replace the XM-L in my STL-V2 style thrower, another (hopefully) for a future UltraFire 1504 build, and the extra as a spare in case the unthinkable happens...
Ahhh - I'm thinking KD has the interpreting the CREE label incorrectly - probably tint is 1C, and 1C is in the 6500K range. Look carefully at the CREE label in their picture:
Not sure how you figure that, is the chip made differently? Different bond wires? If they’d chosen to pop a standard dome on these, would they not then be normal XP-L’s as far as the binning sheets go?
I remember when it was all the rage to put dual exhaust on a car for the gain in horsepower and mileage. No alteration to the engine, but a better exhaust route that allowed it to breathe. Similar in some small way to changing the dome on an emitter, output is altered. Altered output would change the sheets, wouldn’t it?
Edit: The highest color temperature on the Cree charts for the XP-L High Intensity is 6500K. There is no 0B.
Edit II: Tom, you got the jump on me… I was referring to what EF said. And yes, Cree lists the HI separately on page 59 of the tint and binning sheet.
Im referring to the use of the word loss, or lost, or factory dedomed as others have called them. It never had a dome to lose or remove, precisely the point of them. They are domeless, not dome lost or loss or dedomed etc.
So as said, its seems accurate these would not fit the normal chart, that chart taking into account a dome.
Interesting, that label doesn’t conform to Cree’s own information pertaining to order codes. The groups of numbers are broken up wrong according to every Cree publication from MT-G2 to XP-E2, they all have certain groups of numbers that mean certain things and the output bin/tint bin are always the last 5 numbers (V20E1 would be the hightest output and coolest tint).
The above is copied straight from the tint and binning datasheet for the XP-L HI. And yes, at 1050mA there is only a 40 lumen difference between top and bottom output binning for the 6500K tint. But at 3000mA this expands to 92 lumens. Doesn’t seem like a big deal perhaps, but with 12 emitters in the M43 that adds up to a 920 1104 lumen gain for the top dawg. (Again, according to the datasheets) At any rate, Cree says the third group of numbers is internal coding, where all the zero’s are. The coded numbers are doubled above due to min 65 CRI and min 70 CRI columns on the datasheet.
Has anyone seen any information that would lead us to believe the die is different? Would this HI be any different with all the silicone removed, a full de-doming?
Here’s what they say in they’re intro… (I’m sure most of you have already studied this…)
“The XLamp® XP-L High-Intensity LED is the first of Cree’s new class of High-Intensity LEDs optimized to deliver maximum candela through secondary optics. The XP-L High-Intensity LED is the first single-die LED to deliver over 100,000 cd in a 4-degree beam with a 50-mm diameter optic at 10 W. Built on Cree’s breakthrough SC5 Technology™ Platform, the XP-L High-Intensity LED delivers more than double the candelas of the industry’s previous highest-performing single-die XP-L LED through the same optic.”
So I’m wondering if this “new” SC5 Tech is being employed in any other version? Or is the chosen flat silicone domeless style solely responsible for the tighter 115 degree visual angle? Curiouser and curiouser…
I got pretty much the same Q's, so can't help much. I'm thinking though these have all the characteristics of what we do de-doming wise - double the candela, tighter beam, possible tint shift (coolest tints not available), and lumens loss (only available in lower bins). Everything I see leads me to believe they are using the same XP-L dies.