testing a red XP-E, and comparing it to a red XR-C, 22/4/'14: XP-E2 results added in post #32

thank you thank you for these tests! do put the blue one in a thread whereever you see fit =) very very helpful

I will do a blue post ;-)

And the test XP-E2 is in my favorite AA-zoomie for the time being, drawing 1.5A from the stock driver with an Efest 14500 battery :-) :

nice, a red zoomie, you can become the new cat emperor 0:)
settling with my focus adjustable red laser pointer until i can get around to some new builds for now :wink:

Wow, I’ve been looking for how to make an amber zoomie, just like your red one.
Amber ought to work the same as the red — if an amber is available anywhere.
Oh, please …. pointers welcome any time.

I have this one : Luxeon REBEL yellow on PCB - LXML-PL01-0030 on aluminium PCB

NOT powerful, but really nice tint.

Djozz, I love that AA-zoomie you show above. What’s the host and where did you get it?
(I can find what looks like that several places but nowhere that describes what’s inside)
I’d like to put an amber into a host using the stock driver (figured I’d blow up the LED if I tried that with most lights)

http://www.tinydeal.com/focus-highlight-180-lumens-3-modes-cree-r2-flashlight-with-strap-p-100672.html

It is optically identical to a lot of 18650 zoomies, but with AA-size battery. The lens is a larger diameter than the sk68, so it throws a bit better, and IMO it is better looking too. The build quality is very decent.

(are you overdriving that red XP-E2 at 1.5A, or is the driver protecting the LED? getting hot? don’t know what driver is in it, obviously, I’ll get one and try)

The driver in this flashlight is a standard budget AA boost driver that goes sort of direct drive on 14500 li-ions. On li-ions the current is limited by resistances in the system, including on the driver board. 1.5A is ok for the XP-E2, as you can see in the graph above, I would like the led to be driven at 2A so I may swap the driver sometime, or put the led in another host (I have a C8 host doing nothing yet...)

Maybe the Osram Oslon SSL 80? I found them here: OSRAM Oslon SSL 80 amber on Star - Oslon SSL 80 LACP7P-KPKR (KR)

> Osram

mA typ.: 350 mA
mA max.: 1000 mA
V typ.: 2 V
V max.: 2.6 V
Watt: 0,7 W

That’s a higher maximum than the Cree — searching for that available near me.

While searching, that led me to a wonderful collection of LED spectra:
http://www.1023world.net/diy/spectra/

that may be useful for comparisons (much in Japanese I can’t read

oh wow, great site! should come in handy :slight_smile:

Thanks once again for your testing!

What type of use are red emitters most useful for? Besides beeing 8)

Red is the least hard on night vision and penetrates fog and smoke best.

Got one of those Cofly AA-zoomies you recommended,
swapped in an amber emitter
(XR-E on 16mm base from
http://www.fasttech.com/products/1609/10001863/1134700-non-white-cree-xr-e-led-emitters-wbase-plates )

I, er, accidentally de-domed it, while soldering the leads to it.
Fell right off. Guess I got the base too warm.
Oops.
Used it anyhow.

Result is a lovely amber zoomie, smooth flood, nice image of the emitter at zoom.

Now I want to try, I guess an XP-E2? Mouser has the colored Crees — XP-E, XP-E2, and XP-C

Hm. around $2 for XPEBAM-L1-R250-00901
around $5 for XPEAMB-L1-0000-00901
danged if I can tell the difference.
Same pattern for reds and other colors. Time to study more.
Ack.

Any source for amber and red XP-E2s already mounted on a good base?
Else, I’m going to have to learn how to do surface mounting.

inll-outdoor :wink:

The first order code you posted is for a Gen1 XP-E (XPEAMB), the second order code you posted is for a Gen2 (XPEBAM). Cree uses the letter B in their order codes to designate Gen2 emitters, I think that’s across all their lines.

I think not. intl-outdoor doesn’t even sell amber emitters.

I’m not aware of anyone selling amber emitters on good stars.

there’s one: discount code ‘dealsmachine’ and make sure to unselect insurance on checkout
dealsmachine.com - Informationen zum Thema dealsmachine. (sorry for the distraction).
Ok, I found Oldlumens’ video on surface mounting a tiny LED, I guess I can do that.

Thanks for clarifying, I’ll get one or two XPEBAMs and Noctigons and follow your lead.

er — XP-E2 goes on the same Noctigon base as the XP-G2?
(I think so, the E2 is not stated explicitly at Mountainelectronics listing)

Yes it does.