Ultraviolet Emitters

I bought one of these on a SinkPad because the price was right. I havenā€™t gotten around to playing with it yet.

3W 3535 Ultra Violet UV 365nm UV LED

Iā€™ll let someone else beta test this since it is $45. I think it will mount on a XHP70/MKR SinkPad. Who wants to be our Mikey?

Nichia NCSU033B P33d22 UV 365nm LED 540mW Ultra Violet

http://www.nichia.co.jp/specification/products/led/NCSU033B-E.pdf

Picture snagged from Ebay.

can you link us to the nichia mounted on the Sinkpad II From eBayā€¦ the one picturedā€¦.

Itā€™s LCK LED but it is only on the German Ebay. Itā€™s not on the USA Ebay.

http://www.ebay.de/itm/Nichia-NCSU033B-P33d22-UV-Ultra-Violet-365nm-LED-540mW-3W-20mm-Sinkpad-Copper-/221718555640

EDIT:
Also I have noticed that LCK LED and LEDDNA both have the name Law in their PayPal name and both are from Hong Kong. I wonder if Law is a common name in Hong Kong.

Letā€™s compare the XHP70 and Nichia NCSU033B P33d22 footprints.

XHP70

.

Nichia

It is interesting that it has a footprint that fits one of the Sinkpads, and I'm curious if the output peaks higher and at a higher current like that. Looking forward to your build with it !

It is not the latest generation though, the NVSU333A U365 (mentioned above as well) has the same footprint but has an output that is more than 6 times higher (3640mW at 3.5A). I would like to see that happen on a Sinkpad as well :-) I think I do not want to know the retail price :-(

I got an Ebay cheap 365nm emitter and when put in a host was disappointed that it had a white light spot in the middle of the beam, so with a uv filter on my camera I took a photo of it while it was on, high f stop, high speed, and noticed that the white plastic centering ring was the only thing I could see, so I took it out, and the white spot disappeared :bigsmile:

Usual disclaimer, worked for me, not guaranteed to work for you :stuck_out_tongue:

Cheers David

HI David, which one did you buy? link us

Sorry, I bought it in January, all gone now, however the seller has a couple of other 365nm ledā€™s mounted on cree type stars.
As usual its pot luck, link to the ebay.au store,

http://stores.ebay.com.au/panpan-supermarket/3w-led-chip-/\_i.html?\_nkw=ultra+violet&submit=Search&\_fsub=5341848012&\_sid=1171372962

Should open with results for ultra violet displayed :party:

Cheers David

Now this looks like a scam. Right up there with the cheap SkyRay Kings on Ebay.

https://groupgets.com/campaigns/118-nvsu233a-u365-high-power-uv-led

At least their claim about unavailability through the 'regular distributors' is not true, I can buy it at leds.de for 54 euro's (~$60). I would indeed not trust the $15.50, but it is tempting....

I know a couple people with the last name Law. Itā€™s not as common as Ho or Chan, but it seems pretty common here

You donā€™t want to know :frowning:
ā€ NVSU333A, the worldā€™s first standard, high power UV365nm, NICHIA Nichia factory direct supply ā€œ:http://translate.google.com/translate?hl=en&sl=zh-CN&u=http://detail.1688.com/offer/45343824860.html&prev=search

UV group buy starting

I have MTE-301 & Nitecore CU6, they are the best available. Nitecore marginally less visible blue spill. Iā€™m having a torch built for me using NVSU333A which should be interesting, will post a review when done on my UV page.

Btw if you want to test the purity a UV torch, donā€™t use paper (it is dyed to fluoresce), shine it on a spoon, thatā€™ll show you the visible blue spill. The spoon should be black (no reflected visible light at all). If itā€™s blue you have visible blue being reflected from the torch.

-Johan

You donā€™t want to know :frowning:
ā€ NVSU333A, the worldā€™s first standard, high power UV365nm, NICHIA Nichia factory direct supply ā€œ:http://translate.google.com/translate?hl=en&sl=zh-CN&u=http://detail.1688.com/offer/45343824860.html&prev=search
[/quote]

Wow, like 158 USD each lol. If you order 5 or more itā€™s 153! XD

Wow, like 158 USD each lol. If you order 5 or more itā€™s 153! XD
[/quote]

So $5 off if you order 5 or more, you say?

New group buy! NVSU333A, we need 150+ people to get them at $3/unit, and theyā€™ll throw in a custom copper DTP star! :stuck_out_tongue:

I realize this is a bit of an old thread, but I had a customer send me a NVSU333A U365 to be installed in one of my copper p60 modules. IIRC it fits the xhp70 sinkpad fine (this was a while back). Just like a cree you can over drive them. I think I ran it with a mostfet driver at like 6-8 amps. This particular customer had a high risk tolerance ($150ish LED). The emitter held up. This is also how I discovered that older Surefire 6P bezels came with a polycarb lens and not a glass one. I stuck it in my 6p and ran it a few seconds to find out if it was working and this was the result.

Aside from that hiccup everything went perfectly. Despite the ā€œsafeā€ UVA wavelength Iā€™m gonna have to say watch your eyes/skin boys.

:open_mouth:

Thanks for the report, that 333A seems awesome, time for a lowered price for them, like Nichia did for the 276A.
UVA is very nasty for your retina btw, polycarb glasses obliged!!

What is your opinion on the basic low power 395nm UV LED flashlights commonly being sold? I typical opt for wearing glasses when using any UV stuff, but it seems to be a common belief on the internet that its basically ā€œsafeā€? Iā€™ve not been able to find much solid data.