What lights do I need in my collection?

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Dalamar
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Bort wrote:

Also are there different UV wavelengths and are there reasons to choose one wavelength over another?

Yes, UVC and UVB are more useful for rocks, but UVC is exceedingly dangerous as well and should be used with full body protection. I think they usually use full UV spectrum emitters in that case, though.
395nm emitters are crap, mostly visible light

UVC can kill bacteria and mold with a certain varying exposure rate/time, so those are picking up in sales, and probably causing lots of cancer to people who misuse them

I only like high CRI. Collection:

Fireflies NOV-MU 21 4500k E21A

Fireflies ROT66 219B SW45 D220

Fireflies E07 Copper 219B SW45k? (odd/higher lumen bin with lower r9 and higher cct?)

Fireflies E07 219B SW45k

Fireflies E07x Pro sst20 FA4 4000k 

 

Varmint removal:

Convoy M21A C8 ver SST20 4000k (5a)

Convoy S2+ SST20 4000k  FB4 (3200ma)

Memes:

BLF GT94

Emisar D18 660nm SST20 

 

 

CRI test dump https://drive.google.com/drive/folders/1kcl_uOhgfpR4RSsa8F4b-UUVP9mkL6Cr...

Bort
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toddcshoe wrote:
FW is junk. Get something with Androol and a side switch.

What is FW?
The D4V2 is very tempting but i can get two lights for that price and cost is a huge consideration.
Dalamar wrote:
Bort wrote:

Also are there different UV wavelengths and are there reasons to choose one wavelength over another?

Yes, UVC and UVB are more useful for rocks, but UVC is exceedingly dangerous as well and should be used with full body protection. I think they usually use full UV spectrum emitters in that case, though.
395nm emitters are crap, mostly visible light

UVC can kill bacteria and mold with a certain varying exposure rate/time, so those are picking up in sales, and probably causing lots of cancer to people who misuse them


Very interesting, thanjs for letting me know.
Is there any safety considerations for the 365nm?

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

raccoon city
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Bort wrote:

What is FW?

I think he's talking about the Sofirn SP31's firmware, which controls the user interface, which apparently is junk.

Look into the user interface and see if you like it.

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raccoon city wrote:

Bort wrote:

What is FW?


I think he’s talking about the Sofirn SP31’s firmware, which controls the user interface, which apparently is junk.


Look into the user interface and see if you like it.


There is nothing on the page that indicates how the UI works and the manual page is blank
I am open to alternative suggestions

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

raccoon city
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I don't know UV lights worth a darn, so hopefully someone else will assist you.  :BEER:

Kwispelhond
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I’m actually a bit..ehhh.. in the dark what people use them for? Can someone explain me why I need one?

raccoon city
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I live in the desert, and we have scorpions.

UV light makes certain things like scorpions glow really cool.

azj
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The sofirn UV is fine, but it does not come with a ZWB filter and you really need to get one. Look on fleabay or somewhere for a 19.5mm or even a 20.5mm (file it down, I just rubbed the edge on concrete until it fit). You can also look for a Convoy S2 or a jaxman mini uv, but

As far as the UI/FW issue, for a UV it isnt that important. You turn it on, you turn it off. There are no low/medium/high/turbo/strobe modes (or shouldnt be) to worry about, so the UI shouldn’t be an issue

As others have mentioned, you want 365nm UVB. You should still avoid looking directly at the beam.

AFAIK there are no legit UVC LED lights available. There are claims of some, and there are “sterilization” products available, but I doubt their efficacy and legitimacy. There are fluorescent bulbs & products available but that’s beyond the scope of this discussion.

Lightbringer
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Kwispelhond wrote:
I’m actually a bit..ehhh.. in the dark what people use them for? Can someone explain me why I need one?

Predator-vision.

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azj wrote:
The sofirn UV is fine, but it does not come with a ZWB filter and you really need to get one. Look on fleabay or somewhere for a 19.5mm or even a 20.5mm (file it down, I just rubbed the edge on concrete until it fit). You can also look for a Convoy S2 or a jaxman mini uv, but

As far as the UI/FW issue, for a UV it isnt that important. You turn it on, you turn it off. There are no low/medium/high/turbo/strobe modes (or shouldnt be) to worry about, so the UI shouldn’t be an issue

As others have mentioned, you want 365nm UVB. You should still avoid looking directly at the beam.

AFAIK there are no legit UVC LED lights available. There are claims of some, and there are “sterilization” products available, but I doubt their efficacy and legitimacy. There are fluorescent bulbs & products available but that’s beyond the scope of this discussion.


Interesting.
I have never used Ali Express but have used Fasttech and they have this:
https://www.fasttech.com/products/0/10002364/4021100-convoy-s2-led-flash...

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

patmurris
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If you go for a Convoy S2 UV, get this one. I have a few other Nichia UV S2 and this one is more powerful and comes with a ZWB2 filter.
https://www.aliexpress.com/item/32955740360.html

As to what it can be used for… i’d say you’ll find out once you have one. Lots of unexpected things in fact. For instance it lets you spot a lot of stains you can’t see in you’re house – kitchen and bathroom especially. It can be pretty scary actually. Some minerals and woods do fluoresce and shine under UV light. Of course you can check bank notes to see how sophisticated they can be. It is not a light you use much often but it’s good to have one.

zoulas
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There is a very significant oversight here. If you find a good light, like the D4 or D4S, don’t you want more than one? If I love a light, I try and get it in every color. Recently, I have been loving the PD32 v2. Incredible light at $48 with discount.

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raccoon city wrote:
I live in the desert, and we have scorpions.

UV light makes certain things like scorpions glow really cool.

Yep…

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Kwispelhond
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Ok, I’ve ordered The Convoy with the installed filter to check if the lady I pay to clean my house is worth the money…… Smile (wonder what she would be thinking if I’d start following her around with the light?)

It’s definitely something new for me so a worthy new addition to my collection.

Btw: over here where I live, it must be about the absolute opposite to a dessert, very few scorpions over here but maybe I can find funny glowing thingies in the water?

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zoulas wrote:
There is a very significant oversight here. If you find a good light, like the D4 or D4S, don’t you want more than one? If I love a light, I try and get it in every color. Recently, I have been loving the PD32 v2. Incredible light at $48 with discount.

I’d love to sell off all my lights and buy replacements.
However my budget is very small. I can afford 1-3 new lights at most.

I actually regret selling the Convoy M1s, in order to buy one replacement costs more than i sold both for.

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

mortuus
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raccoon city wrote:

I live in the desert, and we have scorpions.


UV light makes certain things like scorpions glow really cool.

show pics i want see scorpions Big Smile

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mortuus wrote:
show pics i want see scorpions Big Smile

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I used to use a UV light and injectible UV dye to find very small leaks in air conditioning systems. It was very expensive then, but would find leaks nothing else would. I think they use similar methods for other fluid leaks. It can also identify a murder scene with luminol spray.

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mortuus wrote:
raccoon city wrote:

I live in the desert, and we have scorpions.


UV light makes certain things like scorpions glow really cool.

show pics i want see scorpions Big Smile


The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Bort
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sarge12 wrote:
I used to use a UV light and injectible UV dye to find very small leaks in air conditioning systems. It was very expensive then, but would find leaks nothing else would. I think they use similar methods for other fluid leaks. It can also identify a murder scene with luminol spray.

Interesting on the AC use.
The problem with the second one is that i have no murder scenes or luminol Big Smile

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

raccoon city
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Here's three photos I took in April 2015.

I took some more last year of a different scorpion, but didn't think of getting UV pics.

scorpion

uv_scorp_belly

uv_scorp_back

Bort
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Being out of the game for a while what companies sell good lights these days?

The ones i know of are
Fasttech
Sofirn
Olight
Nitecore
Intl Outdoor

Where else should i be looking at lights (i’m avoiding Aliexpress and ebay).

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

raccoon city
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Banggood is decent, though not as good as they used to be.

Gearbest is somewhat okay, but if you can find the same flashlight somewhere else, you probably should get it elsewhere.

I know you said you were avoiding AliExpress, but there are some excellent sellers like Sofirn's store and Convoy's store.

If you can find a deal on Canadian Amazon, that's pretty convenient.

ArtieT59
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you need the new Emisar DT8. everyone needs to try this light! it may look.. wierd. but it looks way better in person, and its performance is Wild! and you can get emitters from nichia e21a 2000k all the way to osram CULPM1 and "everything" in between. 

[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

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Bort wrote:
Being out of the game for a while what companies sell good lights these days? The ones i know of are Fasttech Sofirn Olight Nitecore Intl Outdoor Where else should i be looking at lights (i'm avoiding Aliexpress and ebay).

Astrolux (on Banggood) !

Convoy (On Banggood, if you dont want to go ALix)

FireFlies (https://www.ff-light.com/)

Sofirn (on amazon)

Lumintop (on nealsgadgets.com, i have had very good experiences with NG).

 

 

[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

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raccoon city wrote:

Banggood is decent, though not as good as they used to be.


Gearbest is somewhat okay, but if you can find the same flashlight somewhere else, you probably should get it elsewhere.


I know you said you were avoiding AliExpress, but there are some excellent sellers like Sofirn’s store and Convoy’s store.


If you can find a deal on Canadian Amazon, that’s pretty convenient.


Thanks, Amazon prices are not very good, ordering from China is much cheaper than buying from Amazon.
Artiet59 wrote:

you need the new Emisar DT8. everyone needs to try this light! it may look.. wierd. but it looks way better in person, and its performance is Wild! and you can get emitters from nichia e21a 2000k all the way to osram CULPM1 and “everything” in between. 


Interesting light but it eats my entire light budget.

Right now i am looking for a UV light and a Olight S2 replacement.
A 26650 light if more of my lights sell would be nice as well.

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

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A nice UV option would be the Wurkkos WK30, it has a nice 365um emitter, a very nice 5000K white emitter (samsung LH351D) and a powerful red emitter all in 1 package so it satisfies the need for UV and red.
I recently reviewed it here, I wasn’t sure about it at first, but now I love it.https://budgetlightforum.com/node/77920

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Dirty Water Guy wrote:
A nice UV option would be the Wurkkos WK30, it has a nice 365um emitter, a very nice 5000K white emitter (samsung LH351D) and a powerful red emitter all in 1 package so it satisfies the need for UV and red.
I recently reviewed it here, I wasn’t sure about it at first, but now I love it.https://budgetlightforum.com/node/77920

What an interesting light, and checks off several boxes.
Its near the top of my list now Smile

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Bort
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The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

raccoon city
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I don't know anything about the Wurkkos FC11.

What's the ramping like?

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