Single AA Stainless Steel with Q2 bin Cree

[gregw]

One of only two available.. Brighter than my Surefire U2 at Level 6!

Surefire U2 beamshot at Level 6 with 2x CR123 (1/15 sec, F5.6):

Single AA Cree at Max with 14500 Li-ion (1/15 sec, F5.6):

 

[XFlash]

I like it, how much is it?
Thanks

 

[LowTEC]

NICE, isn't it a JetBeam SS clone with a cree? :rock:

 

[jar3ds]

nice U2 Killer

 

[aljsk8]

this is not allowed - it is torch porn

how much is it and can i buy both if i sell my wife?

 

[LowTEC]

this is not allowed - it is torch porn

how much is it and can i buy both if i sell my wife?

That will depend on the lumens of your wife :lolsign:

 

[gregw]

This is a limited edition Jetbeam AA in Stainless Steel. As far as I know, there are only two available right now due to the almost impossibility of getting Q2 bin Cree XR-E LEDs..

 

[D@rk Messenger]

How many levels? Runtimes?

 

[gregw]

This has 5 modes: Medium, Low, High, Strobe, SOS... I think it's pushing the LED at around 1A for High/Max... I haven't tried doing a runtime test yet, but I think it should be around 30 minutes on max using a Li-ion battery... This can also use an AA Alkaline 1.5V, but won't be as bright... The beam still has a slight dark ring around the hotspot which seems to be a characteristic of the Cree LED, but as you can see from the beamshot, it's more than acceptable..

 

[D@rk Messenger]

This has 5 modes: Medium, Low, High, Strobe, SOS... I think it's pushing the LED at around 1A for High/Max... I haven't tried doing a runtime test yet, but I think it should be around 30 minutes on max using a Li-ion battery... This can also use an AA Alkaline 1.5V, but won't be as bright... The beam still has a slight dark ring around the hotspot which seems to be a characteristic of the Cree LED, but as you can see from the beamshot, it's more than acceptable..

To be quite honest, I didn't see the ring, lol, I don't suppose it's still brighter than the u2 even on non lithiums?

 

[gregw]

No, it isn't brighter than a U2 when using Alkaline AA... That will really be asking too much since the battery can't even put out the wattage required to drive the LED at it's maximum...

 

[Radio]

I'll take it!!!!!

 

[chevrofreak]

I hate to say it, but I don't think the LED is going to last very long in that! Very pretty light though

 

[aljsk8]

The problem is my wife is lots-o-lumens on a sunday afternoon but not so great when it gets dark

thats why i want to do the trade?

so is there any news of this light with different cree in it?

as a big fan of stainless steel - i actually hate the fact more of these stainless steel lights are coming out - because it means i have to spend more cash - it was better when there was just one or 2 - because i was happy with what i had!!!

grrr

 

[gregw]

I hate to say it, but I don't think the LED is going to last very long in that! Very pretty light though

Well, the Cree XR-E can be pushed up to 2A, so having this at 1A should be fine.. I'm definitely not expecting any problems here..

 

[chevrofreak]

Well, the Cree XR-E can be pushed up to 2A, so having this at 1A should be fine.. I'm definitely not expecting any problems here..

But being a stainless steel light the heat is having a very difficult time getting away from the LED.

 

[gregw]

But being a stainless steel light the heat is having a very difficult time getting away from the LED.

I know that the LED may heat up a little bit more in the Stainless Steel body than if the body is made from aluminium, but the difference isn't significant due to the small amount of material present in the flashlight, and should make no difference as to the survivability of the LED.

Besides, this flashlight has three different levels, so there is nothing stopping you from using only Medium or Low instead of High all the time...

 

[chevrofreak]

I know that the LED may heat up a little bit more in the Stainless Steel body than if the body is made from aluminium, but the difference isn't significant due to the small amount of material present in the flashlight, and should make no difference as to the survivability of the LED.

Besides, this flashlight has three different levels, so there is nothing stopping you from using only Medium or Low instead of High all the time...

Aluminum has a thermal conductivity of 250 (W/m K) and stainless steel is only 18 (W/m K). That is a very large difference and will indeed have a significant impact on the LED temperature at those high drive levels. Stainless steel really is a very poor material to use with high output LED's. Like I said though, it is still a very good looking light.

 

[aljsk8]

ahh - so thats why they dont make lots of lights with it!

how do you think ss would cope with something that runs at 350 or 700ma?

all said - the majority dont have the light on full power all the time

 

[gregw]

Aluminum has a thermal conductivity of 250 (W/m K) and stainless steel is only 18 (W/m K). That is a very large difference and will indeed have a significant impact on the LED temperature at those high drive levels. Stainless steel really is a very poor material to use with high output LED's. Like I said though, it is still a very good looking light.

Well, from my personal experience, you can't just rely on specs... When creating the Exolion, I had a few aluminium prototypes made before doing Ti and Stainless Steel.. From personal experience, all of them heat up almost the same, regardless of material used.. This is due to the small amount of material that is used. This AA Stainless Steel will likely be the same since it isn't that much bigger..