the newest craziness 9x XM-L U2

80 watts . . . 9 x XM-L in parallel . . . yowser! Also, that 4 x SST-90 pill looks awesome.

I must say; judging from this, these guys seem like true flashaholics . . . . with no fear of the after-life.

whohasthebrightestpipebombFoy

My thoughts exactly!

You just said it better.

The 9 leds will operate at 12v.

Get the two 9*U2 pill, solder it to a big copper heat-sink and you may have a headlight....

Cracked me up

yes, please

ok, I can't afford it - 109 xb-d though?

Will it melt the Nerf gun it is going to get mounted to? I need to know because my kids like to accessorize like their big boy heros.

Flashlight nirvana. Wish Taobao had an English setup.

Anyone else notice each picture appears to be a different light? 1 with 5 leds and 1 with 7 leds and 1 with a smooth reflector. Seems almost light bad photoshopping or something.

There are three different lights for sale, in 5-, 7-, and 9-XM-L configuration.

they are representing the different models in their pics - frankly a 3 or 4 banger would work for me

  • 灰色/XML-T6*5
  • 灰色/XML-T6*7
  • 灰色/XML-T6*9
  • 灰色/XML-U2*5
  • 灰色/XML-U2*7
  • 灰色/XML-U2*9

9 XM-L's in, what, a square inch? Yeah. Good luck with that. Unless they found some super-metal to use as the pill, it will be so freakin hot in about 13 seconds that the XM-Ls will burst into flames. In my light with 24 XM-L's, I had to add 4 pounds of aluminum with more than 450 sq. inches of surface area to even think about controlling the heat produced - and they're far more spaced out. Back of the napkin calculations suggest that 80 or 90 watts into 2 cubic inches of copper would yield a steady state temperature of about 300C - some heat is going to be dissipated by convection through the host, but I would still suspect 200+ C. I know I don't want that thing in my hand.

When LED's are 80% efficient rather than 10%, That will make a kick-ass-host. For now, it's just not practical.

PPtk

Oops. I need to work on my chinese.

is the beamshot of the sr92 with it on low or something?!

It's from this company : http://feilong.us/

Oh....they said for the 9 XM-L model can use 3 x D sized 32650.

From KD's smaller 32600 5000mAh, mitro did 4500mAh @ 5A (I measured 5200mAh @ 1A). The KK 26650 did 10A nicely. So I think battery requirement would be taxed but it's not impossible. However it is non-protected, definitely not for the novices.

The light is the 2D80 model, 80mm++ head and 3D long. So something like TK70 just smaller by 20mm. 1kg mass, 200g more than TK70.

9-XML must use 3x 32650 tube. Not sure if it can do 3S3P 18650.

For the 7-XML and 5-XML models it can use 2D tube, or 2S3P 18650.

It's 80mm reflector with somewhat spaced XM-Ls. Hence it is still something like a floodlight, or think of it as slightly worse than 9 XM-Ls with individual reflectors squeezed inside. From the beamshots, it still throws less than the SR92, and the SR92 has 45k cd. It's damn bright (lumens) though.

PS. As always, never take the output specs at face value, someone tested the CSM-360 and was disappointed.

It's taxed real bad, but not that "mission impossible".

The problem with such a design is that it is not mounted on 14/16mm MCPCB like the DRY, TR-J12, usual triple XM-L suspects. Take for eg the DRY, ignore the output but basically that is a 40W or 40W plus light depending on the amps that the cells can push. It's mounted on a light weight host but the LEDs are on 14mm.

Even with direct emitter bonding, it's too close. Overall efficiency would be like the DRY once past a certain point (eg it's 3A for the triple XM-Ls and it slides down significantly). Even if the driver can take it, say instead of 8000 lumens theorectical, it probably might be 6500 lumens. With that mounting the efficiency takes a heat as it's really different from individual 14mm MCPCB or slightly cut 16mm MCPCBs.

6000-6500 emitter lumens from 9 XM-Ls sounds doable in such a package - but then again it's too expensive. 2 x TR-J12 gives nearly 5000 lumens OTF and costs about usd160 shipped.

Note : 2 x TR-J12 has a total of 10 XM-Ls; 2 lights of 65mm head diameter each (so you can calculate total area). It would have 48k cd, so it's same throw as the SR92. this feilong has less throw than SR92. I think the this 2D80 feilong light is not optimised in one way or another....

Super metal? Na... they use a super liquid, helium ll to be precise (I wish).

"The thermal conductivity of helium II is greater than that of any other known substance, a million times that of helium I and several hundred times that of copper" (Wikipedia) http://www.youtube.com/watch?v=2Z6UJbwxBZI

Nice... where can I get some?

One small problem with this theory.. Just touching a torch containing He-II would freeze your hand pretty quickly. If memory serves, Helium is only liquid at like 2K (2 Degrees C above absolute zero). There also isn't a flashlight manufacturer on the planet that could design seals and threads capable of keeping liquid helium from leaking out.

:)

Not to mention the heat would have nowhere to go :glasses:, darn it. Scientist need to hurry up and invent magic. (actually we do have it, but it is virtual :p )

I don't find it to be a fair comparisson 2100, if you continue that way, you could say, 10 X UF-2100 will give you the same for 100USD.

This is a single light, there is no way to compare to two sepparate lights in my opinion.