Need some help deciding on an Eiger with QTC

[jabe1]

Is the offered level equivalent to the current #8? or dialed back a bit?

I recall you saying the QTC reduces the voltage, not the current. I'm assuming then, that even when using the lower output, there will be no change in runtime? would the draw need to be greater due to the boost circuit?

 

[gustophersmob]

Sorry for what may be a stupid question, but I'm confused about the Volcan. Is the AAA QTC light a VOlcan and not an Eiger? If so, does it have the larger diameter head like shown in Bob's picture?

If the Volcan is the AAA QTC light, does that mean the Eiger will still be offered as is, or will it eventually get QTC? :thinking:

 

[jabe1]

See post #39. All pocket lights will have a QTC.

The first available is the Volcan.

 

[MikeE]

I recall you saying the QTC reduces the voltage, not the current. I'm assuming then, that even when using the lower output, there will be no change in runtime?
.HI, There is a major increase in runtime in my Rainer P7. I used to charge it every couple of days after using it less than 1 hour. Now, its been going for a couple of weeks during which time I've had it sitting on the coffee table at about 10 or 15 lumens for over three hours, and used it for at least another three hours. I don't have any scientific data for you, but the difference is obvious.

 

[jabe1]

Excellent. That is good enough for me.

 

[Curt R]

The Volcan head can use three different batteries, ( AAA, AA or CR2 ), depending
on the battery compartment. There is also a 2 x AAA battery compartment available.
It is not an Eiger replacement. It fits between the Logan and the El Cap with a wider
choice of battery types.

The QTC does not reduce the voltage as a resistor would. It reduces the flow of
voltage through it. A resistor converts electrical energy into heat, the QTC does not.
A reduced voltage level to the boost circuit also reduces the current to the LED,
lower LED output, longer run time than with a current limiting resistor that is normally
used to limit the output of the LED. The QTC is Quantum Tunnel Conductor. It does
not follow what you would normally consider to be established electronics. The closest
standard electronic component would be a mosfet transistor that has a drain, source
and a gate for control. In this case the gate part is the physical compression of the
of the QTC allowing it to change from an insulator to that of a variable conductor.

Curt

 

[jabe1]

Thanks Curt.

 

[JA(me)S]

The only thing that kept a peak from being my keychain light is the lack of levels. I always said that the only thing that would replace my trusty ARC AAA would be a peak AAA light with variable brightness. Looks like the time is near!!!

Get out of my head! I would've written this verbatim if you hadn't already.

It'll be a bittersweet moment - my little ARC has saved me numerous times and I almost have a reverence for it. But what a perfect marriage of reliability and technology Peak is offering - this is gonna be a fun little light!

Now I just have to decide if I want to know how a Quantum Tunnel Conductor works, or just merely revel in the mystery of it all - probably the latter, ignorance is bliss...

- Jas.

 

[Darvis]

I've been using the QTC pills in my various Peaks for a few weeks now (make a rhyme everytime), anyway, it's amazing how versitile they've become. I will definitley be pulling the trigger on a SS version of this light, this is going to be great!! That, and pahserburn's diffusion film has made me re-love my peaks all over again.

 

[eala]

The Volcan head can use three different batteries, ( AAA, AA or CR2 ), depending
on the battery compartment. There is also a 2 x AAA battery compartment available.
It is not an Eiger replacement. It fits between the Logan and the El Cap with a wider
choice of battery types.

Curt

What is the optic or reflector system in the Volcan? What does the beam shot look like? I am suspecting this is more of a thrower given the larger head diameter.

Will there be multiple Volcan heads to fit on the different bodies you mention? I am confused how an AA and AAA body would be able to use the same head due to cell diameter differences. Is this head designed for just the XPG sized LEDs or is it possible to cram an XML in there?

Thanks,
eala

 

[bmcgators98]

This will be a game changer for Peak. I think a lot of people have been waiting for multilevels.

Did I understand Curt correctly that we will be able to order pills to convert our existing single level lights?

Thanks

 

[Curt R]

The thickness of the QTC 'pill' is 0.141 inches. You would have to
increase the depth of the standard battery compartments by 0.055
inches for the unit to work. Otherwise the head would not screw on.

The battery compartments have a different outside diameter that
match the different battery diameters except for the area that the
head screws into. Both the single AAA and the 2 x AAA have a body
diameter of 0.54 inches.

The optic is the same as used in the Logan Peak light, that optic is
from Lidil and they are made in Finland. We have narrow beam pattern
and medium in stock but we are only shipping narrow to RMSK. The
narrow optic has a distinct circular hot spot with excellent side spill.
Dances with flashlights said that his Logan with two AA batteries using
rechargeable NiMHs lights up his entire backyard to the fence 80 feet
away. A single AAA 1.5 volt battery is good for a minimum of 50 feet.

There is no advantage to using the XML LED in this light as the drive
current to the LED is less than 1 Amp. At that drive level the output
is the same for both LEDs. The XML shines at over 1.5 Amps. The
negative results of the XML at lower drive levels is a wider beam pattern
than the XPG due to the XMLs larger surface emitting area.

Curt

 

[JA(me)S]

I have just finished making 1300 Eiger heads in Aluminum and will start on Brass and SS Eiger heads next week.

I now purchase only neutral lights - will the Eiger be available as such (preferably around 5B4)?

- Jas.

 

[dirtech]

This is fascinating. Any chance of a high cri version?

 

[eala]

This is fascinating. Any chance of a high cri version?

You can to do what I just did and buy the High CRI Cree LEDs from Cutter, send them to Peak and ask them to make your lights. I have 4 on order, plus some other stuff.

eala

 

[eala]

Double post.

 

[Derek Dean]

You can to do what I just did and buy the High CRI Cree LEDs from Cutter, send them to Peak and ask them to make your lights. I have 4 on order, plus some other stuff.

eala

Really? I had no idea I could do that. Which High CRI LEDs did you buy? That's great news. I'm in! Thanks.

 

[eala]

Really? I had no idea I could do that. Which High CRI LEDs did you buy? That's great news. I'm in! Thanks.

XPGWHT-U1-0000-00AE7

These are very warm at 3000K. Not sure if I will like them but worth the try. Would much prefer a high CRI at 4500K. If I don't like them, I will flip them on MP and try another build.

http://www.cutter.com.au/products.php?cat=Cree+XPG

eala

 

[shao.fu.tzer]

Now I just have to decide if I want to know how a Quantum Tunnel Conductor works, or just merely revel in the mystery of it all - probably the latter, ignorance is bliss...

- Jas.

Not for me... Google : Quantum QTC, no quotes... There are plenty of interesting pages that will explain how the material works. Very cool.

 

[Derek Dean]

XPGWHT-U1-0000-00AE7

These are very warm at 3000K. Not sure if I will like them but worth the try. Would much prefer a high CRI at 4500K. If I don't like them, I will flip them on MP and try another build.

http://www.cutter.com.au/products.php?cat=Cree+XPG

eala

Thanks for the info eala. Yep, I agree... I think 4500K would be just about right (possibly the XPGWHT-H1 with a CRI of 80 at 4500K), but I'll be interested to hear what you think when you get the CRI 90 at 3000K version.

By the way..... how did you find out you could do this? I've tried to contact Peak directly several times with no success. Did you set this up through RMSK?

Please do keep us posted, as an Eiger with a QTC pill AND a high CRI LED seems like it would be just about the perfect little keyring light.