More Emitter Test Results (xpg2, xpe2, mtg2) Updated 11-12-12

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Match
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More Emitter Test Results (xpg2, xpe2, mtg2) Updated 11-12-12

Gentlemen,

  Since the original "emitter test results" thread was getting a bit crowded, I thought I'd start a new one here for the Cree XP-G 2, and future emitters. Test setup was exactly the same as all prior tests in the previous thread, so I won't repeat that info here.  Exact emitter tested was a Cree XP-G R5 1A mounted on a 20mm star from cutter.com.au. A test with the xp-g 2 directly mounted to copper will follow, but this test is a better indication of what one can expect using a pcb mounted emitter in a flashlight.

Without further ado, here are the pertinent graphs, including one for vf and another comparing it to the original xp-g:

This is the first test in which I also recorded the vf, which I found exceptionally low.  Hope you folks find this useful (and I hope it doesn't get buried in the annals of old DIY threads)

-Match 

Updated 11-12-2012

  Here are the much awaited results of the Cree XP-E Q5 green, XP-E2 R3, and the super sized MT-G2 6v.

This emitter was purchased when asked by a gentleman to make him a green tinted hunting light.  As the graph indicates, it's no powerhouse, but when combined with a C8 smooth xpg reflector it throws very well...which is the whole point.  Instant turn-on at 1600ma was 244L, so there is some gains to be made with direct to copper mounting. I'll post beamshots of this light in another post

Next up we have the new Cree XP-E2 R3.  Again, by single emitter standards it's not going to upset the xml in total output.  What it does do however, is offer similar performance to the original xpg but with a much smaller die size, therefore increasing throw considerably. Where I see this emitter shining (ya, I know) is in small AA or AAA lights where one wants higher lux.  My plan for one of these is to swap it into a Quark AA Turbo light, since the max driver output is ~800ma.  Should make for a noticable jump in the already high lux. Btw, instant turn-on for this emitter at 1800ma was 414L...so again, very real gains in direct to copper mounting.

Here it is, the newest big boy from Cree.  The MT-G2!  I think this is the first emitter I've ever picked up fresh out the package that made me just started giggling like a schoolgirl after her first kiss... Wow what an emitter! The specific bin code for this particular sample is MTGBEZ-00-0000-0B00P050H 5000k Cool White.  The disturbing large amount of lumens not withstanding, I have to say this is the prettiest tint I've yet seen.  Maybe my eyes were a tad singed during testing, but holding up the reflector to the test bench really whetted my appitite for starting my next mod with this emitter.  So, back to the chart above...  Yup, that's a lot of light and a lot more light than the fabled SST90 at similar power levels.  The king is dead, Long Live the King!  And for those curious, instant turn-on was well over 3,100L so direct mounting this beast to copper would be a no brainer. 

Definately look for a build involving this one.

Well, that's all for now.  Hopefully this weekend I'll have the results for the nichia219 done and posted, as long as I don't get distracted by Plants vs Zombies (which caused this delay....). 

Thanks for reading,

-Match

Edited by: Match on 11/12/2012 - 21:19
Jinx
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Thankyou Match, excellent work as ever. Really want one of these in my MPP1 @ 2.5A now

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Match - do you have a Nichia 219? Do you want one for testing? I'd like to see what it does. Let me know.

 

Justin

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Thanks match! After seeing this I might order one and use it in a maglite mod. Smile

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Old-Lumens wrote:

Match - do you have a Nichia 219? Do you want one for testing? I'd like to see what it does. Let me know.

Justin

Thank you for the offer, but it's one I've been meaning to buy/try anyways.  The one time I go to illuminationsupply to order it though, and it was out of stock. Haven't checked in a few weeks now, so maybe back in stock again.

scaru wrote:

Thanks match! After seeing this I might order one and use it in a maglite mod. Smile

Np.  I think it would be fantastic in a mag with a rebel reflector.  I plan on building one shortly, as soon as I get done with the copper mounted tests - gotta know how hard i can push it!

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Thank you Match.

I’m waiting for mine from cutter.com.au too Wink

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oldbobk wrote:

Match,

      I built an XP-G Mag. It was just too tight a beam. Bright, great thrower, turned into a shelf queen. I'll put it this way: it was as bad as the XP-E (or whatever) Mags.

                                                     Bob K

Was that with the incan or rebel reflector?  Also, I do plan on making a hot-rod P60 with one of these. My plan is to use the SF xpg reflector (best one I've seen for xpg), along with a custom copper heatsink that perfectly fits an L2P host with the emitter directly mounted to the copper.  I just need to run the copper mount test first to find out the appropriate current.  Most likely I'll settle at 3 amps, which will mean the same runtime on max as an xml, but with a lot more throw.  Time will tell...

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Yeah, just what I thought Big Smile That Nanjg 2.1A driver from IOS will be a perfect match :bigsmile:

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 these emitters look very interesting .. looks like it takes some amperage to make these lights really shine ..the increase is impressive ..I've always been an xpg fan .....I need to see what kind of throw they have and what it looks like in real life ...neutral of course

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Someone on CPF bench tested this emitter and (IIRC) at around 4.5A he saw 850 lumens. Very curious to see what you get when you push it hard.

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Wow

 

http://i1193.photobucket.com/albums

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thanks for the test ,hope will find them soon on 14mm pcbs.

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Thanks for doing this match.   I love real world technical data.Cool

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vestureofblood wrote:

Thanks for doing this match.   I love real world technical data.Cool

  Match ...............where the rubber meets the road .

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Jeansy wrote:
Thankyou Match, excellent work as ever. Really want one of these in my MPP1 @ 2.5A now

If you do, please take before and after beamshots Smile

Current Collection: BTU: Shocker (3 x SST-40 @ 8A)Lumintop: BLF GT70 (CW Sliced), BLF GTmini; Solarforce: 2 x L2P (XM-L2 U3 2C @ 4A), MPP-1 (XP-L HI @ 6A), MPP-3 (3 x XM-L2 U2 2C @ 12A), M6 (Nichia 319A @ 6A), M8 (Cree XHP-50.2 @ 9A), 9x (9 x XM-L2 U2 1A @ 2A)

Coming Soon: Lumintop: BLF GT4; Sofirn: BLF-LT1;

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+

Thanks Match,,,

your led ‘horsepower curves’ are some of the most important light info out there!!

.

Star Star Star Star Star

xp-g2 @ 2A = killer!

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Really interested in the XP-G2. I have an XP-G p60 driven @ 1.4A. I really like it, and the XP-G2 sounds even better :bigsmile:

I read over on cpf, one of the traders who sells p60’s measured xxx number of lumens driven at 1.4A for the XP-G2, and output only fell by something like 7-10 lumens after several minutes running.
Then an XP-G2 driven @ 1.75A measured more lumens initially, but output fell to the same level as the 1.4A p60 after a few minutes run time due to heat build up.

Have these results been seen here in testing too?
I’d really like an XP-G2 p60 driven at 2A, but wouldn’t want to if its output fell after the first few minutes.

Cheers
Matt

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oldbobk wrote:

MattSPL,

       That’s why I just PMed JonnyC. I want 100-60-20% for the driver, so medium would be 1.26 A. I can tell you that 1.035 A. out of a P60 SMO lights up my backyard just fine!

                                                                                     Bob K

Hi Bob

Yeah, 100,60,20% sounds good.
I have my 1.4A XP-G s2 in an Lop reflector and i really like the beam. I’m looking for something similar but more lumens.

Cheers
Matt

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Lothar wrote:
Jeansy wrote:
Thankyou Match, excellent work as ever. Really want one of these in my MPP1 @ 2.5A now
If you do, please take before and after beamshots Smile

I don’t think I’m capable of doing it but I’ve asked E1320 to have a look at what can be done, he’s pretty busy right now tho…

Perhaps I’ll look at doing the Ultra OK for now as I don’t mind cocking that one up, I have a spare lol

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Pretty sweet data, the XP-G2 is pretty cool, still trying to see one in person though, lol.

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BobK,

  Excellent report on the xpg 2 P60.  What specific reflector did you use?  I've noticed this makes a big difference with any emitter.  For example, the smooth reflector on the MF UF 3-mode xml blows away the generic smooth reflector that comes with most drop-in kits.  Same goes for the smooth reflector from the SF low voltage xp-g drop-in...I wish I could buy just those reflectors.

I'm currently going through the various supply sites and seeing what's out there for xp-g specific reflectors (Much like the xp-g reflector in the SB s-mini...dang near perfect beam for the xp-g2).

-Match

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I’ve got an XP-G2 running in a Dereelight P60 XP-G/E SMO reflector (with the emitter-side bored open slightly) and after some height adjustments, it gets a nice and tight beam.

I’ve also tried the XP-G2 with the SMO reflector from a Solarforce 0.8-4.2v XP-G module but it does not want to focus at all. Weird, considering how well it does with the XP-G.

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Hope this not posted in the wrong section but does anybody know where I can get one of these in a drop-in? I don’t think Erik has any of these yet. I have tried Manafont and Kaidomain but with no results. I have a UF WF501b light that has a dead xenon drop-in and would love one of these XP-G2 drop-ins in it. Thanks in advance.

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Awesome info, and exactly what I was looking for.  Looks like I'll remove two 7135's from my 105C and run it at 2.1 amps on high in my Mag with Rebel reflector.  Thanks for this data Match!

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Where are you guys buying your XP-G2’s? I’ve been looking for an outdoor white and can’t find any.

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just waiting for triple XP-G 2 stars to become available. Hopefully someone will start making those!

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dct73 wrote:
Where are you guys buying your XP-G2's? I've been looking for an outdoor white and can't find any.

I just got one from www.illuminationsupply.com.  I don't even know what tint Wink

Man, there are a lot of people from WI on this forum.

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dct73 wrote:
Where are you guys buying your XP-G2’s? I’ve been looking for an outdoor white and can’t find any.

Iternational outdoors is where i got mine at.

Put one in KD small hole reflector empty dropin module and the beam is nice. Driving with a KD V2 2.2a driver. Its a nice bright setup. Gets warm pretty fast in my L2m running SF protected blue and white. Definately recomend that setup. I have one more xpg2 and going to try it in a big reflectored light just havent decided which one to try it in. Maybe the Jacob A60, or maybe the ebay ultraok 57mm head.

Posted on iPhone

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Cutter.com.au is the only place I’ve seen that has R4-5B Neutral White bins in stock at the moment, but shipping’s gonna be killer.

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I see those at cutter, but the shipping is three times the led price. Shocked

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Group buy .... I'll take 3

5B is the tint I want    Smile

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