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

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Tally-ho
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One more reason with flashlights in moonlight mode : Purkinje effect
Even if an ideal flashlight has zero tint shift over its different modes, you are going to perceive a tint shift with a particularly low moonlight mode.

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Tech25 wrote:
Interesting that I don’t see green in my Sofirn C01s on low or high. Green usually irks me like crazy- maybe the optic in this light helps?

Yes, the TIR in the CO1s will likely mix the beam differently than the reflector in the S2+.

Many LED’s, especially in reflectors, have a significant tint difference between the hotspot and the spill, and my experience is this difference gives you a more obvious means of comparison to notice bad tint in part of the beam.

I’d bet if the beam in the S2+ was diffused, the green would be less noticeable even on moonlight.

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djozz wrote:
*light above the BBL looks uglier in low CRI than in high CRI

My experience is the opposite with the 219C. The original 5000K CRI80 is much nicer at similar slightly greenish duvs (~0.0030-0.0040) than the newer CRI90 variants. On a white wall at least.

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These are ‘my impressions of this particular SST20 4000K 95+ CRI, yours may vary.[/quote]

Hi Teacher. I read that the lumen output with the specs your light has is about 600 lumens on high.. Do you think that is about right?

thank you.

patrick

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Quote:
Hi Teacher. I read that the lumen output with the specs your light has is about 600 lumens on high.. Do you think that is about right?

thank you.

patrick


Here are the numbers Maukka got for that emitter
teacher
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teacher wrote:
These are ‘my impressions of this particular SST20 4000K 95+ CRI, yours may vary.

saypat wrote:

Hi Teacher. I read that the lumen output with the specs your light has is about 600 lumens on high.. Do you think that is about right?

thank you.

patrick

Hi saypat… I would say it is ‘at least’ 600 lumens or a bit better on High.
I see BurningPlayd0h posted some test results & that seems to be about right according to his posted chart.

I can’t get to my ‘Lumen Tube’ at the moment because of some remodeling…. but when I can I’ll measure it & see what I come up with. Thumbs Up

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maukka wrote:
djozz wrote:
*light above the BBL looks uglier in low CRI than in high CRI

My experience is the opposite with the 219C. The original 5000K CRI80 is much nicer at similar slightly greenish duvs (~0.0030-0.0040) than the newer CRI90 variants. On a white wall at least.

Yeah, the 219C 5000K CRI80 I have is actually pretty okay. It tends to make things look a bit lifeless, but overall it’s reasonably good compared to most LEDs I’ve tried. It doesn’t really look not-white during use, even though a camera tells me it’s greenish.

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i hope this light is not too green at low lumens

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If it is, the $1 swatchbook has minus green filter material, but really, the xpl version will just be poor cri with no particular greenness, and the sst20 or lh351d versions are going to be between yellow and green when you go hunting white walls and pretty okay otherwise. It should be fine.

Card Carrying CRI baby https://b.thumbs.redditmedia.com/laMC7BGhREfYTRQjYe2I5FMjTF1IjrmM6bPLK9SKEXU.png

 

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Decided to drop in on the progress of these lights, anyone care to give a synopsis on how the evaluation samples are coming?

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This is pretty off-topic, but anyone have any ideas how to make a strip of RGB LEDs work? There’s someone trying to make a fancy flow wand which draws things in the air while it moves, and I haven’t really tried to do anything like that:

http://budgetlightforum.com/node/66616

About more on-topic stuff though…

amplificus wrote:
Decided to drop in on the progress of these lights, anyone care to give a synopsis on how the evaluation samples are coming?

If I understand correctly, the optics might be in now… and then Neal is planning to send some lights for sanity testing to make sure nothing is broken. I haven’t heard any details yet though. Hopefully soon?

BurningPlayd0h wrote:
Shaved LH351Ds are quickly becoming my favorite emitter, for single emitter lights at least.

That’s something I still need to try. It sounds really promising. At least, it’s a good way to make use of those dog farts. Smile

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ToyKeeper wrote:
This is pretty off-topic, but anyone have any ideas how to make a strip of RGB LEDs work? There’s someone trying to make a fancy flow wand which draws things in the air while it moves, and I haven’t really tried to do anything like that:

http://budgetlightforum.com/node/66616

You mean like a neopixel strip or ws2812? 3 wires and all are individually addressable, lots of Arduino libraries out there for POV

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+1 interested

Eraursls1984
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Quote:
… and the sst20 or lh351d versions are going to be between yellow and green when you go hunting white walls and pretty okay otherwise. It should be fine.

This gets quite tiresome. No, it is green in use as well. Tint with yellow, or green are, for me, not noticeable outside in foliage. However, it is very noticeable in use indoors, or outdoors in a more urban area. So unless you’re in the woods, it is absolutely noticeable.
teacher
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/\ .. Yep. 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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tatasal
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Mass production will commence after the QingMing Festival ( literally a day for tomb sweeping; but significantly a day for remembering past ancestors)

Leds to be used are the XP-L HI 3D .(~4875K)..as for the other led version(s), no definite news about them still.

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tatasal wrote:
Mass production will commence after the QingMing Festival ( literally a day for tomb sweeping; but significantly a day for remembering past ancestors)

Leds to be used are the XP-L HI 3D…as for the other led version(s), no definite news about them still.


Time to start putting some money aside! Cash
And to remember that I am running a GAW for a FW3A here Beer

Thanks for the update tatasal !!

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Whatever, I’ll swap the LEDs anyway…
But I don’t see how the price would be the same between XP-L HI and SST20…

"-X3-, is there any place in your house without a flashlight ?" 

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teacher
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tatasal wrote:
Mass production will commence after the QingMing Festival ( literally a day for tomb sweeping; but significantly a day for remembering past ancestors)

Leds to be used are the XP-L HI 3D .(~4875K)..as for the other led version(s), no definite news about them still.

Thanks for the update tatasal… Thumbs Up

QingMing Festival this year is 5 April 2019 by the way. Wink

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

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X3 wrote:
Whatever, I’ll swap the LEDs anyway…
But I don’t see how the price would be the same between XP-L HI and SST20…
I ‘thought’ the XP-L HI was gonna be around $6 more per light. Question

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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From the OP:

 

emitter

-X3-
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Sorry guys…
Well, it’s a clever move from Lumintop.
Begin to produce the long awaited FW3A with XP-L HI, sell it for 36$ to evryone would can’t wait anymore after all this time…then you eventually put some SST20 in the production and sell more for 30$…

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I don’t think Lumintop is trying to do anything “clever”. It has been known for a very long time the XP-L HI was going to possibly cost around $6 more per light. It has also been known the other LED options have been, for whatever reason; hard to source.

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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tatasal wrote:
Mass production will commence after the QingMing Festival ( literally a day for tomb sweeping; but significantly a day for remembering past ancestors) Leds to be used are the XP-L HI 3D .(~4875K)..as for the other led version(s), no definite news about them still.

 

FWIW, the QingMing festival is on Friday, Apr 5 in 2019. 

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teacher wrote:
I don’t think Lumintop is trying to do anything “clever”. It has been known for a very long time the XP-L HI was going to possibly cost around $6 more per light. It has also been known the other LED options have been, for whatever reason; hard to source.

I wish I was as naive as you are, the world would seem like a better place.
Anyway, at least it move forward

"-X3-, is there any place in your house without a flashlight ?" 

My Flashlight public album (mods, emitter swaps, eye candy)

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teacher wrote:
The “Convoy S2+ SST20 4000K 95CRI” finally came in today.
Nice! I got mine too Big Smile

Eraursls1984 wrote:
Quote:
… and the sst20 or lh351d versions are going to be between yellow and green when you go hunting white walls and pretty okay otherwise. It should be fine.

This gets quite tiresome. No, it is green in use as well. Tint with yellow, or green are, for me, not noticeable outside in foliage. However, it is very noticeable in use indoors, or outdoors in a more urban area. So unless you’re in the woods, it is absolutely noticeable.
Not for me, i’ve been using a 4000K SST-20 for the last week or so on the low modes of a biscotti 1400ma driver and while it is immediately a bit green my eyes adjust within a few seconds of use (even with sunlight through windows as background lighting) at which point it just becomes a joy to use, sublime even (see what i did there :D), with no noticable tint just very useable light with great colours and depth perception (because of the green i think) which is exactly what i want.
In fact it’s (at least temporarily) put me off rosy tints, but that’s for another thread.

For this thread – i’ll be choosing the SST-20 4000K version Smile
Edit: Although from above it seems this is not confirmed as an option yet :S

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tatasal wrote:
Mass production will commence after the QingMing Festival ( literally a day for tomb sweeping; but significantly a day for remembering past ancestors)

Leds to be used are the XP-L HI 3D .(~4875K)..as for the other led version(s), no definite news about them still.

Not wanting to delay any further but I was under the impression production samples were to be sent to a number of membrs for a final check over prior to full production commencing.

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I wouldn’t put it past any manufacturer to structure availability to maximize profits, but that’s not what’s going on here. Looking at prices on Arrow, the cheapest XP-L HI is $3.50 in bulk quantities. LH351Ds are as low as $0.70, and single quantities of the popular 5000K, 90 CRI version are cheaper than bulk XP-L HIs. A search on Octopart finds the SST-20 in 4000K, 95 CRI is cheaper still, both in single and bulk quantities.

It wouldn’t surprise me if Lumintop’s per-unit profit is actually higher on the lower-priced high-CRI version, whichever emitter it ends up with.

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It is a great light! really small but powerful as a 18650 light!

I didn’t read through the thread, how is the heat sink?

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amplificus wrote:
ToyKeeper wrote:
This is pretty off-topic, but anyone have any ideas how to make a strip of RGB LEDs work? There’s someone trying to make a fancy flow wand which draws things in the air while it moves, and I haven’t really tried to do anything like that:

http://budgetlightforum.com/node/66616

You mean like a neopixel strip or ws2812? 3 wires and all are individually addressable, lots of Arduino libraries out there for POV

Something like that. But the discussion is over there, not here. Smile

I think it’s interesting, and I’m watching to learn from the thread, but it’s not really for my benefit. I just figure someone on BLF probably has the answers this person needs to make a cool shiny thing.

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