- The Fake-Cree LED Awareness Thread - The new "low" in Budget lights.

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JFeldschau
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So you think for sure not Cree? Thanks for your reply!

DBSAR
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JFeldschau wrote:
Ok. Your meaning Cree XTE? It does look like the picture in that thread. I’m about to buy 60 of these and I just want to make sure they are the real deal. So it can be a Cree and not say Cree?

The genuine XTE: > https://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-x...

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

JFeldschau
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Tricky business! Hard to really know

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I zoomed in on your pic and I don’t see the dot that’s in one corner of the XTE’s.

JFeldschau
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Thank you for your observation. I’m an amateur at identifying fakes. I’m about to drop a couple thousand dollars on lights and don’t want to be taken for a fool.

JFeldschau
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Any thoughts on the credibility of 1000bulbs.com ?

Sari33
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Very Helpfull thread,thanks!
have some old XM-L same package as original and bond wires
but die size a bit smaller than the authentic
will post photos soon

csbert
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Anyone knows if this is a fake XM-L2 u3 or not? Got this from Aliexpress.

https://postimg.cc/vggBJ4XP

Thanks

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csbert wrote:
Anyone knows if this is a fake XM-L2 u3 or not? Got this from Aliexpress.

https://postimg.cc/vggBJ4XP

Thanks


It looks like the real thing to me but the bin could be anything. But you never know just how cleaver they can be.
This might help a little.

http://budgetlightforum.com/node/49725

csbert
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moderator007 wrote:

It looks like the real thing to me but the bin could be anything. But you never know just how cleaver they can be.
This might help a little.

http://budgetlightforum.com/node/49725

Thanks. The dot pattern looks right. However, there is a curious writing in the corner that I couldn’t find on the internet.

thisnameisvalid
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csbert wrote:
moderator007 wrote:

It looks like the real thing to me but the bin could be anything. But you never know just how cleaver they can be.
This might help a little.

http://budgetlightforum.com/node/49725

Thanks. The dot pattern looks right. However, there is a curious writing in the corner that I couldn’t find on the internet.

Looks fake to me. The substrate on that is white, but on a real XM-L2 it’s black. Even the fake emitters getting decent so as long it works fine I wouldn’t worry about it being genuine or not.

csbert
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I was curious so I bought a XM-L T6 on a starboard from digikey (shouldn’t be fake right?). I installed it into the flashlight and guess what? The T6 was about 160 flux while the U3 from the light was about 200 flux from about 6 feet away. So I guess these are either real or very good fake.

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csbert wrote:
I was curious so I bought a XM-L T6 on a starboard from digikey (shouldn’t be fake right?). I installed it into the flashlight and guess what? The T6 was about 160 flux while the U3 from the light was about 200 flux from about 6 feet away. So I guess these are either real or very good fake.

Link is not working)

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Is it possible that these LB’s are actually using CREE’s chip, but has worse implementation (i.e. lower quality substrate, lower grade gold wires, worse quality phosphors, etc.)?

I also have a gut feeling that LB may be cutting corner by using the blue LED chip meant for XP-Gs in the XML-like body and try to pass it off as XM-L. Of course, that results in lower overall efficiency.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

DBSAR
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rngwn wrote:
Is it possible that these LB’s are actually using CREE’s chip, but has worse implementation (i.e. lower quality substrate, lower grade gold wires, worse quality phosphors, etc.)?

I also have a gut feeling that LB may be cutting corner by using the blue LED chip meant for XP-Gs in the XML-like body and try to pass it off as XM-L. Of course, that results in lower overall efficiency.

its difficult to know. the LB LEDs are less efficient, have bad CRI, and very inconsistent with quality & tint.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

scosgt
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I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

rngwn
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scosgt wrote:
I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

That’s “instant dedome” feature! You should be happy about it that you don’t need to do it yourself. LOL

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

scosgt
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rngwn wrote:
scosgt wrote:
I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

That’s “instant dedome” feature! You should be happy about it that you don’t need to do it yourself. LOL

LOL

The_Fat_Controller
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scosgt wrote:
I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

They run a seriously over driven Fake XHP..

But the 3amp 6v driver is perfect for an MT-G2 if you drop one of those in and swap out the cruddy plastic lens with a glass one, you get a good few more lumens and the light runs way cooler also decent run time on half decent 26650’s

scosgt
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The_Fat_Controller wrote:
scosgt wrote:
I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

They run a seriously over driven Fake XHP..

But the 3amp 6v driver is perfect for an MT-G2 if you drop one of those in and swap out the cruddy plastic lens with a glass one, you get a good few more lumens and the light runs way cooler also decent run time on half decent 26650’s

I swapped in a real (hopefully) HP70.2
Where do I get a glass lens?

snakebite
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the build quality is definitely not cree.
look at the die attach adhesive.

Flail wrote:
Could use some help with this one:

Does that look like a genuine XP-E ?

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one indicator of fake is sloppy die attach.
a mature manufacturing process like cree’s wont have that.
that sloppy attach increases thermal resistance.
so far even if the rest of the device looks spot on the poor build quality gives it away.

g_sintornillos wrote:
steendp wrote:
.

.

Fake for me
The core is too small
rngwn
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I don’t know if I should mention this, but I noticed a large influx of Chinese suppliers making “CREE XM/XP family” clones. There are at least three manufacturers I am in contact with are making these.

Make no mistakes, they don’t sell these as “XM-L” or “XP-G” but rather, for example: “5050 5w” (basically using XP-G sized die on XM-L case). It is up to the flashlight makers to advertise these as “CREE”.

You can probably guess what happens when they advertise the “5w 5050” as “XM-L” and push 10w into these.

PS: Some manufacturer I know may offer High CRI version of these too. (although you will most likely get in-spec CRI, but the tint will very much depend on the luck of the draw).

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

The_Fat_Controller
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Glued on emitters Facepalm , every time I think I’ve seen everything, this has to be up with batteries filled with sand

rngwn
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To be fair, CREE does this too, but in a less sloppy manner, unless the LED in question are flip-chip ones that can be soldered directly on the substrate.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

The_Fat_Controller
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Are the emitters on kaidomain genuine?

rngwn
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Based on the earlier discussions in this thread, Kaidomain indeed sells genuine emitters. KD also includes the pics of the plastic wrap (with brand, binning and other techincal infos) where the emitters came from for some of the items.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

The_Fat_Controller
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scosgt wrote:
The_Fat_Controller wrote:
scosgt wrote:
I may have gotten a fake chip in this cheap light

Cheap zoomie

It is a 6 Volt XHP 70, but when I took off the bezel and lens the dome just fell off!

See my post in modding.

They run a seriously over driven Fake XHP..

But the 3amp 6v driver is perfect for an MT-G2 if you drop one of those in and swap out the cruddy plastic lens with a glass one, you get a good few more lumens and the light runs way cooler also decent run time on half decent 26650’s

I swapped in a real (hopefully) HP70.2
Where do I get a glass lens?

I used this one

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