New LuckySun BLF-D80 Production has Started

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DB Custom
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Looking forward to where this one goes, while I wasn’t exactly a fan of the style when I first saw it the design sure grew on me when we were doing the BLF Special Edition lights and I still highly favor the beam profile from the reflector they made. I call it a theater beam, a defined yet largish hot spot with low spill… really like that a lot and you just don’t see it often. Hope they keep it similar with the new designs.

TheOnlyDocc
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I hope that they can find a reflector with tighter hotspot and or less spill. If not i would also be happy with the old one (with 7mm led hole instead of the 9,5 from the old one). But reflector testing is further down the road.

From now on i will update new drawings. . . in the first post. This way it is not necessary to read throu all the pages.

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

cabfrank
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I just used mine last night, and Dale is right, “theatre beam” is a perfect description. I actually also love it, and hope that part doesn’t change. It has a lot of throw outside at night, but the hotspot is much larger than other small, throwy lights. Very useful.

Lexel
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spill angle and lumens are basically only affected by the lenght to opening ratio of the reflector

so with given head there wont be any change in that proportion

TheOnlyDocc
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Correct me if i am wrong! But with a different curve in the reflector you will get a different beam shape or not?
I think thats what they want to test.
By tha way i updated the internal structure of the head. The stepped design is not happening. Because of the small space between reflector and head they would have to make many small stepps. It seems it is easier to fabricate this form. But we got the bigger mass un the inside + deeper finns and one more. Not a lot but without changing the appearance this is the best we could do.
I hope you like it. And the Tailcap gets a new end. What do you think about it?

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

-X3-
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I dropped a 3V XHP50.2 in my D80, with a Sofirn FET driver that I had laying around.
The FET might not be the best one, only pulls 9A from a 30Q but it does produce some photons !
The beam is nice, fat hotspot, well defined and some usable spill.
Pictures later

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DB Custom
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^ tease

cabfrank
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That sounds really good.

TheOnlyDocc
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If everything goes like planned i will get beam pics from the reflector test next week.
And they will make some short video clips from the machining process when they start with production.
Can not wait to see how the D80 emerge from a piece of aluminium.

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

-X3-
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X3 wrote:
I dropped a 3V XHP50.2 in my D80, with a Sofirn FET driver that I had laying around.
The FET might not be the best one, only pulls 9A from a 30Q but it does produce some photons !
The beam is nice, fat hotspot, well defined and some usable spill.
Pictures later

Okay I confess I didn’t do any beamshot or pic at all… sorry
Though I did some measurements : 2030 lumens and 20kCd

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TheOnlyDocc
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I need your help guys.
I was asked which CCT we would like to see. They want to offer 2 CCTs. The LED will be a XP-L Hi. Let me know which CCT you prefer in a new D80.

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

BlueSwordM
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4000k and 5000k.

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I would like to see 5D/5A 4000k.

Lexel
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I would go away from Cree to Samsung LED LH351D

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I like the LH351D a lot. But for a thrower like the D80 the XP-L-Hi seems the better option.
And correct me if i am wrong but could it be a problem running only one LH351D on a FET driver with big good springs. . . ?
It is a comercial sold light. So a burned out led would be a problem.

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

DB Custom
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The D80 is more of a general purpose light than it is a thrower, even with the HI it’s not really a thrower. The LH351D should handle any cell that the light can accept, even with bypasses on the springs.

I like the beam profile an XM-L2 gives in the D80 reflector so that will likely be my choice, if I find I have another SBT-70 I may well use it here… Big Smile

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The LH351D is one tough LED.

Not as tough as the XP-L2, but better than the XP-L HI.

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I wasn’t around for the original BLF-D80 development, but over the years it has been mentioned and recommended quite a few times in other unrelated threads. Now that this updated version is in the works, I definitely need at least one.

Like many others, I prefer 4000K-5000K Hi CRI.

TheOnlyDocc
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I talked to LuckySun and they looked into the LH351D. Untill now they did not find a source (that can deliver the needed quantitys / within a reasonble price).
And they are still waiting for the new batch of reflectors. The first batch they tested did not deliver the desired beam.
But they are testing out the driver. For now i have not heard anything bad about it. And i did not expect problems from this side (maybe that they think it is to expensive in comparsion to the drivers they used to use). But with a strong comunity behind it, they can see the advantages of it.

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

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Mine now rocks an SST40 and a BLF FET driver.
8A and 2170 lumens.
It would be a good upgrade of the original design IMO.
The beam is really neat, the hotspot is the same as with the original XM-L2, but with double the lumens !

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DB Custom
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^ what he said

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This is not a thrower anyway, so why bother with XP-L HI or other small die LED ?
Go fat or go home !
(an XHP50.2 3V would get a 3000+ lumens but then it will be a true hotrod, not really reliable IMO)

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cabfrank
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It may not be a “thrower” but it is definitely more of a throwy edc than a floody edc, which is a very nice option in a world of triples and quads. I think the SST-40 setup sounds great, since the xhp is too hot.

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The SST-40 can get plenty hot as well. Smile

Lexel
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TheOnlyDocc wrote:
I talked to LuckySun and they looked into the LH351D. Untill now they did not find a source (that can deliver the needed quantitys / within a reasonble price). And they are still waiting for the new batch of reflectors. The first batch they tested did not deliver the desired beam. But they are testing out the driver. For now i have not heard anything bad about it. And i did not expect problems from this side (maybe that they think it is to expensive in comparsion to the drivers they used to use). But with a strong comunity behind it, they can see the advantages of it.

https://octopart.com/search?q=lh351D&category_ids=4408&start=0
https://www.digikey.de/product-detail/de/SPHWHTL3DA0CF4QTW6/1510-2262-1-...

250 1,13928 284,82 €

almost 10000 stock

above 250 pieces like 1.28$ per LED not good enough? way cheaper than XPL HI

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Woudn’t the more throwy Cree be better than the Samsung in this light?

DB Custom
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The reflector works beautifully with the large XM-L2 emitter, since the Samsung SST-40 is the same size as the XM-L2 the reflector should have very much the same profile but the 40 can handle a lot more power and produce well over 2000 lumens on the right cell, I’ve seen as high as 2600 lumens from a fully modified light with a top cell… that would make the D80 a superior smallish light in my book!

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Yeah, that sounds great to me. I completely agree.

I meant Cree>Samsung LH351D. Isn’t the SST-40 a Luminous emitter?
Maybe they are the same company and I am uninformed?

Either way, yeah, I’d love the SST-40.

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@ Lexel
It is the same reason why Lumintop is not using the LH351D. They can not source the leds in China.
And ordering parts from the US is more expensive and a bit more complicated than it looks if you are living in China.
If it were so easy and cheap Lumintop would have done it for the FW3A. We do not know the whole situation.
I will ask about the SST-40. But if i remember right, the SST-40 is not available in high CRI. Or have i missed a new high CRI SST-40?

New LuckySun D80 looking good so far http://budgetlightforum.com/node/66255

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I’d prefer the LH351D 5000k 90CRI.

Would still be very bright, but would have much better tint and color rendition compared to the… unpleasant 6500k of the SST-40.

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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