FW3A, a TLF/BLF EDC flashlight - SST-20 available, coupon codes public

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mortuus
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ok sign me up for 1 x LH351D 4000K 90CRI .

...where Frugal meets with Flashlight!

amplificus
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I think I have two on the list, please add me for 2 more. Thanks

Meyer
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In TLF I have registered one FW3A (219.Meyer on the TLF-list) and opted for a second one. To be on the safe side please put me on the BLF-list with one XPL-HI 3D and one LH351D.
Thanks

BlueSwordM
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Got a message back from Digikey again. And good news!

Great for the FW3A groupbuy, but not too great for smaller buyers.

For individual samples(less than a reel), the tint bins are randomly available from T6, TA, T7 and TB. No wonder the LH351D from Bob Mc Bob looked so green.

For a 1x reel LH351D (like our groupbuy), the only tint bin confirmed and available is T6, so way better than the 2nd and 3rd batch of LH351Ds, so about as good as the 1st batch from AEDe, but still not the godly T2/T4 bin.

HOWEVER, for 4x reels of LH351Ds, the tint bins are confirmed and available in the T4 and T6 bin, and the T4 bin is way below the BBL and closer to 3900-4000k rather than 4100k-4000k according to the Digi-Key rep. That is very good.

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

Tally-ho
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BlueSwordM wrote:
HOWEVER, for 4x reels of LH351Ds, the tint bins are confirmed and available in the T4

BlueSwordM
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Yeah it’s really nice.

There’s an other advantage taking 4 reels rather than one.

Look:

1 reel order bin: F2T4*Q2*
4 reel order bin: F2T6*R2*

So not only are we getting a below BBL tint, we are getting one flux bin higher by going from Q2 to R2.

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

iamlucky13
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Glad to hear this information! I hope Lumintop is able to make use of your research.

From the latest list update: 1715 lights x 3 emitters / light = 5145 emitters.

My understanding is these are sold in 800 piece reels, or in 4 reel cases (3200 pieces).

If Lumintop are willing plan on half of buyers going for the LH351D, plus a modest number of additional sales beyond the group buy, then ordering a case should be justifiable.

jgradyc
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I will take one. Thanks for doing this!

iamlucky13
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BlueSwordM wrote:
For a 1x reel LH351D (like our groupbuy), the only tint bin confirmed and available is T6, so way better than the 2nd and 3rd batch of LH351Ds, so about as good as the 1st batch from AEDe, but still not the godly T2/T4 bin.

HOWEVER, for 4x reels of LH351Ds, the tint bins are confirmed and available in the T4 and T6 bin, and the T4 bin is way below the BBL and close to 4100k-4000k according to the Digi-Key rep. That is very good.

I’m not sure the Digi-Key rep got the color temp for T4 quite right. Looking at the datasheet and trying to scale the chart on page 10, here’s how I read it:

  • T6 should be 4000K to 4125K, and Duv roughly +.002 to -.004
  • T4 should be 3750K to 3875K, and Duv roughly -.004 to -.010.

It looks like there could be a choice to make between rosier tint at a warmer color temperature versus a color temperature with broader appeal plus 20 lumens and a chance of just enough of a greenish tint that discerning users might notice.

As a related reminder, Maukka seemed pretty happy with a Carclo triple-equipped light he modded with LH351D’s (TC bin?) that measured at +.0036 Duv (assuming “medium” is the closest condition to the binning conditions of 1050mA).

BlueSwordM
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Yeah she was probably wrong in the color temp department.

It’s funny though that we got a warmer tint bin with a higher flux bin. That was surprising.

Edit: I was the one who was wrong. Transcribed badly on my part.

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

ActiveAl
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BlueSwordM wrote:
*HOWEVER*, *for 4x reels of LH351Ds*, the tint bins are confirmed and available in the *_T4_* and T6 bin, and the T4 bin is way below the BBL and close to 4100k-4000k according to the Digi-Key rep. That is very good.

BlueSwordM, thank you so much for taking the initiative on this! If this works out, we are truly in your debt. 

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^^^^^ . Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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Tally-ho
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iamlucky13 wrote:
It looks like there could be a choice to make between rosier tint at a warmer color temperature versus a color temperature with broader appeal plus 20 lumens and a chance of just enough of a greenish tint that discerning users might notice.

2 weeks ago when ToyKepper proposed 3 choices, the deal was to wait for a better (rosier) tin bin T1, T2, T3, T4. It was not to wait for the greenish T6. Tired

Tech25
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BlueSwordM wrote:
for 4x reels of LH351Ds, the tint bins are confirmed and available in the T4 and T6 bin, and the T4 bin is way below the BBL and close to 4100k-4000k according to the Digi-Key rep. That is very good.

Thank you for doing the legwork!

Kalpn
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Interested in 2x lh351d 4000k.

iamlucky13
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Tally-ho wrote:
iamlucky13 wrote:
It looks like there could be a choice to make between rosier tint at a warmer color temperature versus a color temperature with broader appeal plus 20 lumens and a chance of just enough of a greenish tint that discerning users might notice.

2 weeks ago when ToyKepper proposed 3 choices, the deal was to wait for a better (rosier) tin bin T1, T2, T3, T4. It was not to wait for the greenish T6. Tired

I also would prefer below the BBL, but I’m being open-minded because I know some people have stronger feelings about color temperature than I have about small positive Duv values.

What encourages me most about Maukka’s testing of LH351D’s with a similar or worse Duv than a T6 should have is he saw limited tint-shift across the beam in a Carclo optic. Find a rainbow beam more distracting than slight deviations from the BBL.

BurningPlayd0h
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Yeah its very green corona/hotspot that is the worst. I can stand above BBL if it’s consistent across the beam (and the CCT doesn’t shift too much either).

I’ve been pretty happy with the 4000K LH351Ds I got from Mtn-Elec that I put in my Q8. Don’t have any idea what tint bin they are but less green than a lot of Cree emitters I’ve seen that weren’t specifically binned for on/below BBL.

Agro
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leo l. wrote:
In the TLF I have registered (Leo) for 4 pieces LH351D. To be on the safe side I would like to do it here, too.

Meyer wrote:
In TLF I have registered one FW3A (219.Meyer on the TLF-list) and opted for a second one. To be on the safe side please put me on the BLF-list with one XPL-HI 3D and one LH351D.
Thanks

I think it would be useful if you asked to be removed from the TLF list.
ToyKeeper
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Agro wrote:
leo l. wrote:
In the TLF I have registered (Leo) for 4 pieces LH351D. To be on the safe side I would like to do it here, too.
Meyer wrote:
In TLF I have registered one FW3A (219.Meyer on the TLF-list) and opted for a second one. To be on the safe side please put me on the BLF-list with one XPL-HI 3D and one LH351D. Thanks
I think it would be useful if you asked to be removed from the TLF list.

Yeah, it’s kind of important to be as accurate as possible about the lists. I don’t expect to reach 100% accuracy, but some past projects have gotten as high as ~95%.

leo l.
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The list in TLF was updated at last in September 20th.!

Regards
Leo

BlueSwordM
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Guys, I came back for an important exception.

I just received a critical email from Digieky stating there was an error in communication about the chromacity bins.

While the T4 bins are available from Samsung, they are not available from Digikey at the time!

The rep stated that it was an error on her part stating a typo, and that the T4 bin is only available on a custom order Crying

Only the T6 bin are available and in stock from Digikey Sad

Sorry Crying Crying Crying

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

mortuus
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is the design of the light final ?

...where Frugal meets with Flashlight!

teacher
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Yes… pretty much.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Owen the K
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Please sign me up for two FW3As – one of each emitter type.

Owen the K

Edindevon
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Can I be added to the list for a second one. Total of 2.

Been trying to resist but I don’t think I can pick which emitter I’d rather have.

SomethingRandom
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In for 2

Vaxd
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In for one with the lh351d emitter

matik42
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FW3A Team wrote:
Interest list updated again in post #4.

Not found myself so

Interested in one LH351D 4000K 90CRI

thanks

JasonWW
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matik42 wrote:
FW3A Team wrote:
Interest list updated again in post #4.

Not found myself so

Interested in one LH351D 4000K 90CRI

thanks


I see you at #1695.

Texas Ace Lumen Tube calibrated with Maukka lights

Click this to go to signature links.

BurningPlayd0h
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So, since LH351D well-binned ordering options are quickly evaporating + reports of their beam profile maybe not being ideal is there any chance the LH351C or SST-20 could be considered instead? At least down the road if a source for below BBL 351Ds isn’t found?

I know the first test of the HCRI 4000K SST-20s in the PL47 shows they are from a bin that’s below BBL.

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