Interest list for 41.8mmx2mm ZWB2 filters, status: produced, received and most filters sent to BLF-members

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djozz
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Interest list for 41.8mmx2mm ZWB2 filters, status: produced, received and most filters sent to BLF-members

Hi BLF,

This interest list is about UV-transmission filters to filter out visible stray light from 365nm UV-leds. These 41.8mmx2mm filters will fit the C8-size flashlight.

A few people are interested in one so I asked a quote via alibaba. If I buy 20 pieces and keep 3 for myself, the costs, including shipping worldwide (no tracking to keep costs down, your risk) are 14 dollar per filter.

I keep an interest list here, if 17 filters are spoken for in a few days, I will carry on with the order. If not, I will probably cancel it.

Edit: 16 filters spoken for at this point so I gave the go ahead to the alibaba manufacturer. When they arrive at my place I will send a PM to the members on the list asking for an address and money. Will send them out ASAP then.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

Edited by: djozz on 04/05/2018 - 04:35
djozz
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List (total needed=20)

1 djozz
2 djozz
3 djozz
4 ImA4Wheelr
5 slimkango
6 antiparanoico
7 Scientist
8 Scientist
9 Henk4you
10 TBone
11 Speed4goal
12 khas
13 warsi1975
14 HarleyQuin
15 bigm
16 Lightbringer
17 Sonofspectrum
18 DB Custom
19 korpzgrinda
20 bento

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

ImA4Wheelr
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Oh yeah.  Definitely would like 1.   Been running across scorpions under my house and my shed.  Would like some serious UV flood/throw to quickly scan an area before crawling into it.  Thank you for pursuing this.

slimkango
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Definitely would like one also. Please put me on the list. Thank you

djozz
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1st bump to keep this on the first page.

There is no good way to do this, I realise: the aliexpress quote will not last forever, and to be honest: I do not want to spend more than a few days on it to start it going either. But although I’m sure there is interest for 17 of these filters, a list like this may take weeks to fill up.

Still, on wednesday or thursday I make the decision..

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

antiparanoico
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Count me in for one.

If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.

djozz
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Impatient bump Innocent

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

Scientist
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Posted in the other thread too but I will take 2.

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Ouch. Facepalm

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Henk4U2
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One for me please. Don’t have a 365 nm thrower, yet.
If the deal goes through, I won’t have to wait indefinitely for my parcel to arrive.
The current record is 123 days between PP and ding-dong.

I always think long and hard before I say something really stupid.

TBone
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I’ll take one.

Speed4goal
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I’ll take one, I’ve been wanting a uv light for awhilr and c8s and x6s are my favorite host. Should flood and throw decently with a big reflector like that. Now just have to find a suitable led and driver.

Doesn’t nichia make one?
If someone could link a led from Cree or nichia it would be appreciated. I guess if I had to I could get one of those cheap 501b 365nm uv flashlights and take the led out of it if push came to shove

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khas
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I’ll take one, thanks

warzi1975
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I want one. Is it possible to ship it to Germany?

Robert

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Count me in for 1.
Thanks

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djozz
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The list goes unexpectedly well, I wake up with 14 filters accounted for, and maybe two more by PM. I decided to already proceed with the alibaba order. Thanks for the speedy decisions, and I hope that not too many will miss out now. Smile

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

bigm
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I will take one please. This will go perfectly with one of the three Thorfire C8S’s I just ordered. Looks like Simon is selling the LG 365nm led on 20mm dtp boards. Smile I’m waiting on my S2 with that led from him, and already have a filter for that. Curious to see how that compares to my S2+‘s with the Nichia 365nm leds. Any idea which would throw better djozz? Which has the smaller die? If I remember from your tests, it looks like the LG might handle more power and have higher output, with similar quality to the Nichia, right? I guess either way, the LG from Convoy is already on a 20mm dtp board, so that seems like the way I’ll go for my first C8 mod. Thanks for the idea and the filter! Smile

djozz
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Added! The die of the LG is slightly bigger than the Nichia 276A, but the higher drive current and output of the LG should more than compensate for that.

About the quality, I think the LG on a DTP board is a much tougher led than the 276A (that has a 2-pad design that can not be mounted on a common DTP XP-board). The only quality aspect that the Nichia has over the LG is very low visible stray light, but with the use of a ZWB2 filter that quality is not relevant.

Btw, the SeoelViosys led from Kaidomain has a smaller die than the LG and should throw a bit better than the LG.

LOL, we are talking throw in 365nm UV-leds, how about putting one in the GT, spotting scorpions on the other side of town Party

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

djozz
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First page bump. 5 more are needed on the list. Lightbringer may be in for 2 so 3 may be enough, but there’s no confirmation yet.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

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Eep! Just got in to work now… count me in for one!

Rather try one of those LGs than scavenge one from an S2+.

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djozz
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Lightbringer wrote:
Eep! Just got in to work now… count me in for one!

Rather try one of those LGs than scavenge one from an S2+.


Agree, or the Seoel viosys led from KD.

4 filters left to sign up for.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

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I will take one if there’s any spaces left thanks.

It's moments of madness that keep us sane.

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Almost missed seeing this Jos! I need one for my copper X6 and Nichia NVSU333A emitter, it’s 35mm but I can grind it down if need be. Hope there’s still a spot on the list…

If so, count me in! Smile

Dale

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DB Custom wrote:
Almost missed seeing this Jos! I need one for my copper X6 and Nichia NVSU333A emitter, it’s 35mm but I can grind it down if need be. Hope there’s still a spot on the list…

If so, count me in! Smile


Done!
Grinding off 3.5mm is a tough job, and make sure not to breathe the dust (yes I know how glass dust tastes in my nose and throat Facepalm )

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

DB Custom
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For the record, if there’s any trouble filling those last couple of spots I’ll go for two. Wink

Dale

djozz
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DB Custom wrote:
For the record, if there’s any trouble filling those last couple of spots I’ll go for two. Wink

Will keep that in mind. I ordered them anyway so there is plenty time now to get the last spots filled up.

Now I just hope that during shipping from China to me no extra costs are generated underway. Innocent

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

ImA4Wheelr
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Great news.  Please let us know what we owe you when you have them in hand.  Thanks again djozz.

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I’m just building a light around your filter… Cool
For long I thought about toying with an UV light but never did. The idea of blocking the straylight just put me over the edge. Now I ordered a Sofirn C8F host and 3 emitter (went with the Seoul Viosys after your great UV-LED test).
Funds are standing by, just gimme the word.

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DB Custom
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That’s funny Harley, I had the exact same thought but haven’t ordered the light yet. Big Smile

Edit: I was thinking more of a Nichia emitter but… Wink

Dale

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We are all building the same light, the C8F with the Seoel Viosys led (good output, small die) Cool

I have one Lexel Narsil driver leftover that I can use, direct drive will hopefully get the leds close to 2A per led.

Let’s hope that Changchun Ruiqi Optoelectronics (that is where I did the order) is a bit quick with making them.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

djozz
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Btw, there’s still 2 spots vacant in the list. Anyone?

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

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