XHP70.2 P2 4000k Output test by Texas_Ace - it's over 9000!! lumens and still going strong!

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Texas_Ace
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XHP70.2 P2 4000k Output test by Texas_Ace - it's over 9000!! lumens and still going strong!

Ok, I finally managed to get my hands on an XHP70.2 thanks to Lumintop.

So I put it on the sphere and was seriously impressed.

I ran this test at 12V so that I could test it fully since my power supply is limited to 15A. I have converted the numbers to the more common 6V in the spreadsheet.

If you would like to see the performance at 12v, simply double the voltage and half the current. So 10A at 6V becomes 5A at 12V (which is what the BLF GT is capable of doing on the stock driver).

This LED is so powerful it overloaded my 95W CPU heatsink. The numbers over about ~120w would be improved with better heatsinking I am sure, although not sure how much improvement.

With better heat sinking I would expect it to preform very much like my XP-L2 test here (since it is 4x XP-L2 dies on a single LED). So the lumen output should keep rising slowly until ~20A before leveling off instead of maxing at around 18A.

The cold start numbers are after letting the heat sink cool down and taking a reading at 5s, it is a good indication of what to expect in the first few second in a light. 30s numbers will be closer to the normal hot test numbers unless you light is massive.

Even after pumping over 180W into this LED when retested at 2A it put out the same lumens as it did when I started, very impressive!

Far as the beam goes, I have only tried it in the GT reflector so far and it is much better then the xhp70 but still does have a darker spot in the middle but it is much improved.

Now for the numbers, It peaked at just under 9k lumens, with a larger heat sink I am guessing it would have made it a bit over 9k before leveling off.

on a cold start at ~24A it did over 10,000 lumens at 5s!

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The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Edited by: Texas_Ace on 12/06/2017 - 14:48
luminarium iaculator
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Whoa! That’s a monster Thumbs Up

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Nice! So your heatpath is quite a lot better than in my emittertest-setup. But not as good as the setup of Köf3 on TLF, who also tested a P2 bin, that maxed out above 20A. Except for the highest currents your results match his fairly well btw Smile
( http://www.taschenlampen-forum.de/threads/led-test-english-cree-xlamp-xh...≈-4000-k-cct.58163/ )

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djozz wrote:
Nice! So your heatpath is quite a lot better than in my emittertest-setup. But not as good as the setup of Köf3 on TLF, who also tested a P2 bin, that maxed out above 20A. Except for the highest currents your results match his fairly well btw Smile ( http://www.taschenlampen-forum.de/threads/led-test-english-cree-xlamp-xh...≈-4000-k-cct.58163/ )

I was actually thinking about that, don’t you have a long piece of copper to stick the LED down into your sphere? That could actually be a bottleneck with this much power. Everything says your heatsink should be better then mine.

I actually tried to use a copper heatsink when I first built my setup, I broke 3 or 4 drill bits trying to tap it for the screws and finally gave up and just went with the best all aluminum heat sink I had. I knew it was a downgrade but at least it worked.

So I am not real surprised that this overloaded it, it was only designed to handle a 95W CPU afterall.

Köf3’s results are exactly what I would expect with a better heatsink on the high end.

Hmmm, if I could get my hands on a Brass slug, it is possible I could solder that onto the copper heatsink and then drill and tap the slug…. The question is where could I get a slug for less then the cost of just buying something better for the job.

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The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

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My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

EasyB
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Awesome numbers!

I hope you will share some results of your testing in the BLF GT. I’m interested in some candela numbers domed and dedomed in a flashlight.

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EasyB wrote:
Awesome numbers!

I hope you will share some results of your testing in the BLF GT. I’m interested in some candela numbers domed and dedomed in a flashlight.

I posted the results so far in the GT thread and in my Giggles review thread. All results are domed so far. I am debating if I want to slice the dome or not, I really like the tint as it is now and it is a pricey LED lol.

I will mot likely slice the dome though and see what it does after I see the results of the latest focusing.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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EasyB wrote:
Awesome numbers!

I hope you will share some results of your testing in the BLF GT. I’m interested in some candela numbers domed and dedomed in a flashlight.


From the GT thread.

Measured throw in my less then ideal Texas conditions are about 1250m of throw at 5A and a bit over 1300m at 6A with the dome still intact.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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I’ve never seen your sphere or test setup. Have you ever posted any pics of it?

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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Excellent testing TA. Thanks for the effort. What do you think the ideal heatsink for testing would be like?

My current and or voltage measurements are only relevent to anything that I measure.

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That’s a whole lotta output!

How long do you let the emitter stabilize between measurements, 30s?

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Looks like this LED overclocks pretty well Smile
I wonder how would it do on LN cooling Smile

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Thanks for the great test Texas_Ace.
It’s really impressive that an LED can handle so many watts and still make it out intact.

Once the price of the XHP70.2 breaks the $8 barrier, budget-oriented brands will start going crazy with their new flashlights.

My daily deals thread: ☢ [Gearbest.com Special Deals]
If you need any coupon code, just leave a reply on the thread.

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Impressive results, thanks for the time invested!

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JasonWW wrote:
I’ve never seen your sphere or test setup. Have you ever posted any pics of it?

I posted a thread awhile back on it here: http://budgetlightforum.com/node/51640

Nothing super fancy but has proven itself reliable and consistent, which is the most important part.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Texas_Ace
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MRsDNF wrote:
Excellent testing TA. Thanks for the effort. What do you think the ideal heatsink for testing would be like?

A big one lol.

Ideal is a relative term. A better CPU heat sink would do the trick nicely, something without heat pipes and good enough for at least 150W, 200W would be better. The problem is by that point you are usually dealing with heat pipes and that makes drilling and tapping the mounting holes almost impossible.

As a compromise the copper core stock intel heat sinks would work fairly well but man, they are hard to drill and tap. I already tried to do that to one I had.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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Water cooling?

Big Smile

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

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maukka wrote:
That’s a whole lotta output!

How long do you let the emitter stabilize between measurements, 30s?

Indeed, I was very surprised when the output just kept going up and up and up. It didn’t even drop under 100lm/watt until over 7000 lumens!

I don’t really measure the time between measurements, just do them at a leisurely pace. Most likely around 30 seconds for each one.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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FreeMagenta wrote:
Looks like this LED overclocks pretty well Smile I wonder how would it do on LN cooling Smile

Over 10,000 lumens for sure. It would be really impressive if not totally impractical lol.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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Is it a full CPU cooler setup with a fan? How about putting the heatsink in a pan of ice cold water? Be careful what with the amps and water not mixing though voltage is low enough. Alternately inverted compressed air can?

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Jerommel wrote:
Water cooling?

This is a good idea, but Matt is not very knowledgeable in the subject. No offense to him. A simple copper water block, a high flow pump using 3/8” lines and a bucket of water should easily handle the heat. The question though is whether you just want to keep the emitter cool or to better simulate real world conditions of a flashlight heating up?

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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torqu3e wrote:
Is it a full CPU cooler setup with a fan? How about putting the heatsink in a pan of ice cold water? Be careful what with the amps and water not mixing though voltage is low enough. Alternately inverted compressed air can?

Yes, it is a full stock intel 95W CPU cooler. I also had a 135W stock intel cooler with the copper core but it ate all my small drill bits.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Texas_Ace
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JasonWW wrote:
Jerommel wrote:
Water cooling?
This is a good idea, but Matt is not very knowledgeable in the subject. No offense to him. A simple copper water block, a high flow pump using 3/8” lines and a bucket of water should easily handle the heat. The question though is whether you just want to keep the emitter cool or to better simulate real world conditions of a flashlight heating up?

I like to simulate real world conditions to some extent, which is why I was never that worried about getting the biggest heatsink around. Even this test is not something I am particularly bothered about. The cold start tests show what it can do on a cold start but the hot tests are more what can be expected in the real world.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Enderman
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Yeah, using a giant CPU heatsink or AIO cooler should be able to get you those 10k lumens continuously Wink
Definitely not a “normal” flashlight use case though.

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Very interestingly, I sliced the dome on the xhp70.2 in Giggles and the Kcd jumped by over 50%!

I would not have guessed it would gain that much.

It went from ~450kcd with the dome to over 700Kcd with the (badly) sliced dome.

All of this with only ~90w of power, it could do even more if you pushed it.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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https://www.ebay.com/itm/5PCS-CPU-GPU-Thermal-Silicone-Grease-Compound-Glue-Heatsink-Plaster-STARS-922-5g/152180587367

I'd use some small dabs of thermal glue among the thermal paste between the heatsink and the led baseplate. This way you can use a massive high performance CPU cooler without worries. To disassemble it help yourself with some alcohol and/or white spirit, can't remember which one did the trick for me right now.

 

Cheers Smile

  

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Maybe now it’ll be more believable to folks that I had an L6 running 9200 lumens. Believe it or not, doesn’t change what it’s doing. Wink

Dale

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DB Custom wrote:
Maybe now it’ll be more believable to folks that I had an L6 running 9200 lumens. Believe it or not, doesn’t change what it’s doing. Wink

This is actually where the test LED will end up once I get my soldering iron replaced.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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Circuit Specialists have had some sales going on.

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I was impressed by the luminous output of the xhp70.2 in my chimera but not by the ugly halo. That said, in real-life outdoor use the halo isn’t as obvious as on a wall and four months use with hundreds of hours at low and mid levels with a ta srk driver from lexel powered by 8x (2s4p ncr18650b) impressed me enough I haven’t replaced it. The chimera handles heat well enough that with the 70°c step down it still hasn’t stepped down from turbo at 20 minutes.

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Texas_Ace wrote:
Very interestingly, I sliced the dome on the xhp70.2 in Giggles and the Kcd jumped by over 50%!

It went from ~450kcd with the dome to over 700Kcd with the (badly) sliced dome.


50% is quite large! Usually it’s 25% to 30%, isn’t it?

Do you think the overall result is positive or negative?

You loose lumens as well as have a smaller area the hotspot covers, but gain distance.

When I sliced my older xhp70 I found the end result was negative as I prefered the bigger hotspot and brighter output. Maybe it’s a personal preference thing?

I noticed the sliced hotspot size was pretty much the same as a xhp50.2 with the dome on.

I would speculate that a sliced dome xhp50.2 would give the same hot spot size as a xhp35 HD (with dome).

So you get 4 steps of hot spot size:

Xhp35 hi

Xhp35 HD
Xhp50.2 sliced

Xhp50.2
Xhp70.2 sliced

Xhp70.2

You start with the smallest hot spot, the lowest lumens and the lowest amp draw. Then as you go down the list the hotspot size goes up.

I wonder how the 50.2 and sliced 70.2 compare as far as amp draw for the lumens they put out?

I’ll have to sit down and crunch the numbers one of these days.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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tekwyzrd wrote:
I was impressed by the luminous output of the xhp70.2 in my chimera but not by the ugly halo. That said, in real-life outdoor use the halo isn’t as obvious as on a wall and four months use with hundreds of hours at low and mid levels with a ta srk driver from lexel powered by 8x (2s4p ncr18650b) impressed me enough I haven’t replaced it. The chimera handles heat well enough that with the 70°c step down it still hasn’t stepped down from turbo at 20 minutes.

Yeah, after refcusing this setup is growing on me. Never been a fan of dedomed LED’s before but this one is tolerable.

Particularly outside you hardly notice the tint shift unless you are looking for it.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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