BlueSwordM LED Group Buy 3: a 3V 5050 domeless Ra9070 4000-4500k LED, the perfect XM-L2/SST-40 (UPDATE 2: Something new!)

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PatX
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In for 10.

Thx

thefreeman
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djozz wrote:
In for 10.

Given that there is a small gap between the dies, I can not think of a reason why there will not be a visible donut hole in the hotspot when used well focused in a smooth reflector, like we do in flashlights. It may be limited but it will be there, and an OP reflector may be needed to smooth it out.

The manufacturer may not realise that that is how a led is often used in a flashlight, as opposed to general lighting/car uses.

+1 and IMO it’s necessary to test this before making any large order. If fogofwar can test a sample that would be great.

Unloco
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In fo 6. Thumbs Up

BlueSwordM
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Well, as for why I trust them and do not worry, similar LEDs like the XHP70/XHP50 had this problem being domed LEDs with gapped dies, but when being dedomed, the problem went away.

But yeah, that would be our best shot.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Haukkeli
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BlueSwordM wrote:
Well, as for why I trust them and do not worry, similar LEDs like the XHP70/XHP50 had this problem being domed LEDs with gapped dies, but when being dedomed, the problem went away.

But yeah, that would be our best shot.


Luxeon MZ on the other hand has a hole with reflectors.
thefreeman
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B35A too.

BlueSwordM
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Wait, the B35AM has holes?

Isn’t it a singular large die with multiple small emitters all under the phosphor?
If so, that is interesting.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Haukkeli
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BlueSwordM wrote:
Wait, the B35AM has holes?

Isn’t it a singular large die with multiple small emitters all under the phosphor?
If so, that is interesting.


It has 4 E21 dies
BlueSwordM
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Yeah, but it’s all under a single phosphor.

Weird if it causes issues.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

thefreeman
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BlueSwordM wrote:
Wait, the B35AM has holes?

Isn’t it a singular large die with multiple small emitters all under the phosphor?
If so, that is interesting.

Courtesy of Clemence.

Haukkeli
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It works nice in my S21A with OP reflector.

BlueSwordM
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thefreeman wrote:
BlueSwordM wrote:
Wait, the B35AM has holes?

Isn’t it a singular large die with multiple small emitters all under the phosphor?
If so, that is interesting.

Courtesy of Clemence.

Oh, there are actual gaps between the emitters.
I did not know that.

Well, I’m currently in talks with fogofwar so he can get samples Big Smile

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

thefreeman
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Haukkeli wrote:
It works nice in my S21A with OP reflector.

Yeah OP is fine, it only produces a darker spot with SMO reflectors and some clear TIR optics.

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Can probably just adjust the reflector height a little until the spot goes away.

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I updated the spreadsheet with all of the new demands.

And yeah, I’m currently in talks with the manufacturer to check if he could send their current CNW/CW samples(5700-6500k) to fogofwar to see if the donut hole problem is a big thing or not.

In the meantime, I’m still looking for a similar LED as an alternative with a single die Silly

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

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Donut hole is only a problem in small SMO reflectors.

I’ve been using XHP50 gen1 which is exactly the same layout like this emitter and in OP reflectors it’s not a problem (even in some tiny ones).

Few specific models (super throwers) had visible donut hole. 
Long story short, yes there will be a donut in some setups.

I still need it…

WTB Titanium 4sevens 2xAA tube

BlueSwordM
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Yeah, but testing is still good.

It might be domeless, but we want optimal beam quality Silly

Don’t worry: I haven’t found another manufacturer capable of making such an LED yet with a better emitter setup, so everything is good.
It’s our “only” current option unless someone at Nichia/Luminus/Cree/Getian decides to actually make something like this Big Smile

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

pc_light
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5 3V for me.

On the light side.

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Added.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

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Update my amount of led from 3 to 10 please

Current collection

Olight -Smini Br -X7R -Smini Cu Nitecore -TM06S Thrunite  -TN42 -TN40 Manker -Mk34 -MC13 Cu -MK38 50.3 Noctigon Emisar -Meteor -D4 -D1 -D1S -D18 -D4S Lumintop -BLF GT -GT Mini -Tool AA 2.0 -FW3C Acebeam -X80GTvn -W30 -X50 2.0 Imalent -R90C -MS18 -MS12 Mini FireFlies -E07 Br Reylight -Pineapple Br Haikelite MT03 Br

 

Product Reviews

Chargers:

Opus BT-C3100MiBoxer C4-12MiBoxer C8Folomov A1

Flashlights:

BLF GTTN42TG06SEmisar D4GT MiniS70STM36EDC-C4BLF Q8W30

Custom Builds

XPL-HI C8, Aspheric XHP-70OSLON D1S

BlueSwordM
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Done.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Equinox
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I am in for 20
I salute your engagement Thumbs Up

Life Is Too Short To Be Taken Seriously. -- Oscar Wilde --

PyriteParachute
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I’m in for 4, so long as an actual test shows no donut hole.

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I already said it on Reddit - but please put me in for 20, blueswordm.

 

thank you!

 

and the closer to 4000k the better for me (4000k is my perfect cct). 4500k is exciting too, though. 

[FLF] Five Light Friday https://budgetlightforum.com/node/78749

Check out some of my new lights (picture heavy) and quick first impressions of them here: https://budgetlightforum.com/node/77180

My Sft40 beamshots / comparison thread: https://budgetlightforum.com/node/78100

The BLF GT with SFT40 (2300lm, 2700m+ @ 30 seconds!)
https://budgetlightforum.com/node/79561

BlueSwordM
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Done.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

SKV89
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I prefer 4000k for general purpose flashlight. 2700k or lower for bedtime use.

Put me down for 20!

lordlupulin
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In for 10

storbod
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I’m in for 5

BlueSwordM
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@SKV89, lordlupulin, storbod, all added.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

xenohedron
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In for 10. Thanks for organizing.

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