NEW CREE XB-D LED.... Good candidate for a new line of small throwers?

Just spotted this on their website, what do you guys think?

The XLamp XB-D delivers similar performance to the XP-G LED in a package that is 48% smaller than the XLamp XP footprint.
Leveraging Cree's latest silicon carbide technology and expertise, the XB-D LED delivers up to 139 lumens and 136 lumens per watt in cool white (6000K) or up to 107 lumens and 105 lumens per watt in warm white (3000K), both at 350 mA and 85°C.
Features

• Smallest lighting class LED: 2.45 X 2.45 mm footprint
• New generation of Cree's silicon carbide-based LEDs
• Characterized and binned at 85°C
• http://www.cree.com/products/xlamp_xbd.asp

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Sounds like around the size of and XR-E maybe, but higher brightness. This would make for an AWESOME thrower if this is true.

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Look at the emitting angle

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Ah... 115 degree angle. But what if it was in a larger reflector?

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Sgt. LED said:

Look at the emitting angle

Click to expand...

115º
Isn't that the same as the XP-E?

Anyways, perhaps this is a upgrade to their "value LEDs" the XP-C and XR-C?

Edit:
Oh, and is anyone considering requesting a sample LED? :devil:

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Yeah a decent size reflector could tame it and make a great thrower.
Inch and a half and larger perhaps for nice reach

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Imon said:

115º
Isn't that the same as the XP-E?

Anyways, perhaps this is a upgrade to their "value LEDs" the XP-C and XR-C?

Click to expand...

No sure, but I figured it could be interesting if it would work. It's small and appears to be really efficient.

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

It will all depend on the size of the die, if that is below 1 mm^2 it's a winner. If larger, we'll probably stick with the XR-E for throwers, and this this will compete on price and in non-throw lights. Considering its low Vf (3.3V @ 1A, giving 280+ lm) and small footprint I think we can expect semi-direct-drive minilights based on this one. Note that throwers will be mostly reflectors, since the beam is incredibly wide from the start. If this baby runs 1.5A as well, I'll get myself 10

Re: CREE XB-D LED.... Good candidate for a new line of small throwers?

Sgt. LED said:

Yeah a decent size reflector could tame it and make a great thrower.
Inch and a half and larger perhaps for nice reach

Click to expand...

Doesn't necessarily have to be a wide reflector to create a thrower. My old Jetbeam Jet III Pro ST's reflector is only about 21 mm wide, but is about 25 mm deep, and it throws very well with a nice tight beam profile. While I don't have any 'dedicated' throwers, the Pro ST is no slouch for throw in an EDC-able size.

That said, I'd love to see one of these in a long, slim light, with a narrow and deep reflector to generate some good throw. I'd love to have a little 2xAA dedicated thrower.

The package is small but the real important data is the size of the die, do we know it ?

If You look into the datasheets, You'll find out that the intonsity over angle curve looks more like the YP-G, than like the XP-E. Therefore I don't expect good throw capabilities.

+

Supercharged XP-E,..I'm there!!


Edit: good point Erzengel, it'll still be very functional emitter,
...just take any current XP-G light & without changing anything,, you'll have a bit more throw.





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This is neat.
I was just thinking about when Cree would make a new emitter while I was laying in bed.
Check CPF, and they made a new emitter. Sweet!

I like the idea of what we're thinking it'll be like. Can someone please stick a XB-D S2 in a flashlight and see what it does.

Erzengel said:

If You look into the datasheets, You'll find out that the intonsity over angle curve looks more like the YP-G, than like the XP-E. Therefore I don't expect good throw capabilities.

Click to expand...

Even XPG's can throw well with a properly designed reflector that's appropriate for their die size and emission angle. The TK35 is an XML based light and it throws pretty well... The emitter characteristics are important, but they can be trumped by a reflector.

Following up on my earlier post, I'd love to see one of these in something like one of the new 2xAA EagleTac twisties, but with a reflector that's two or three times as deep. I'd be willing to pay the length penalty for the throw it would produce...

And I want one in neutral or high CRI!

B0wz3r said:

Even XPG's can throw well with a properly designed reflector that's appropriate for their die size and emission angle. The TK35 is an XML based light and it throws pretty well... The emitter characteristics are important, but they can be trumped by a reflector.

Following up on my earlier post, I'd love to see one of these in something like one of the new 2xAA EagleTac twisties, but with a reflector that's two or three times as deep. I'd be willing to pay the length penalty for the throw it would produce...

And I want one in neutral or high CRI!

Click to expand...

This is very true. That's why this is good for those of us (like myself) that don't want long oblong reflectors to get better throw that the XP-G/XM-L have. I understand it's a tradeoff though. The XP/XR-E were good at that. So maybe from what I read you guys are (some of you guys) are expecting with the XB-D being a supercharge XP-E is close to being just that(without the supercharger ). I used to have an Energizer Lithium 2AA(XR-E) with a very short reflector and boy that thing could throw.

I was actually thinking the same thing, what if this was in my ol' P100A2?

oops, double post

Animalmother said:

This is neat.
I was just thinking about when Cree would make a new emitter while I was laying in bed.
Check CPF, and they made a new emitter. Sweet!

I like the idea of what we're thinking it'll be like. Can someone please stick a XB-D S2 in a flashlight and see what it does.

Click to expand...

That's exactly what I was thinking when I checked CREE's website and saw a brand new LED . I figured I would post it since I couldn't find any other info here yet and let the experts take over but then this one popped up, and was beat to the punch... ahemmm my#1hobby. Guess we all think alike. Pretty exciting if this would work in a small light.

I am not psychic, but I sense my wallet will take a battering. The XB-D looks interesting

my#1hobby said:

in a package that is 48% smaller than the XLamp XP footprint

Click to expand...

The smaller base could be a problem for heatsinking purposes. May not be able to overdrive it as much as the XR-E/XP-E/XP-G.

Perhaps copper to LED bonding is in order.