ALL GONE...Free High Power UV LEDs.

DavidEF · 2019-08-20T20:07:26.000Z

MNLegoBoy:

I’ll take some for maybe a first mod
or some very jenky uv rock display

vob indicated above that these are far too powerful to be used as a display. They would be dangerous to your eyes. :cowboy_hat_face:

mattlward · 2019-08-20T20:09:47.000Z

Something tells me these are more than one would need to set UV glue… Sound like fun.

Cereal_killer · 2019-08-20T20:11:17.000Z

I’d like one or two but didn’t claim them cause that’s all I’d ever use and don’t want to take them away from anyone else.

Whoever gets them, I’d cover shippinv for one after you’ve got them from VOB if you’re willing to share.

Lumencraft-Matt · 2019-08-20T20:11:44.000Z

All of you who are interested and can actually use them send me your addresses. I will divide them up.

MNLegoBoy · 2019-08-20T20:14:47.000Z

DavidEF:

MNLegoBoy:

I’ll take some for maybe a first mod
or some very jenky uv rock display

vob indicated above that these are far too powerful to be used as a display. They would be dangerous to your eyes. :cowboy_hat_face:

Protective glass over the front of the LED’s, but yeah that’s why it would be jenky

Lumencraft-Matt · 2019-08-20T20:27:46.000Z

Everyone who sent an address has emitters on the way. I still have some more ( there were lots $$:money_mouth_face: so if anyone else wants some message me your address.

mattlward · 2019-08-20T20:36:32.000Z

These will make a great illuminator for my full spectrum camera. Will need to get a filter for 395 now.

Lumencraft-Matt · 2019-08-20T21:24:59.000Z

Ive got enough left for about two more packages worth

moderator007 · 2019-08-20T22:10:37.000Z

I’ll try a few if you still have some left. PM inbound.

Lumencraft-Matt · 2019-08-20T22:43:13.000Z

One more pack left

nydude · 2019-08-20T22:47:55.000Z

would love to find out how these ultimately get used.

Pwsmith · 2019-08-20T23:36:42.000Z

I’ll take one if it’s still available, was planning on scooping up a driver from you too, maybe toss one in if i give you the order number?

Bill_tong · 2019-08-21T00:21:42.000Z

I’ll take one if it’s still available. Thanks

DavidEF · 2019-08-21T01:17:09.000Z

Also, what is the Vf of these?

Mr.Scott · 2019-08-21T01:55:54.000Z

I’d take 2 (or 1) if some are still available.

Thanks!

Lumencraft-Matt · 2019-08-21T02:44:01.000Z

I will finish sorting this in the morning. As of this post they are all gone.

moderator007 · 2019-08-21T03:25:01.000Z

Thanks for the generous offer VOB. Free is about as generous as it gets .

Lumencraft-Matt · 2019-08-21T17:49:06.000Z

The last of the emitters was sent out, I do apologize to the last couple of you. Everyone who sent me there info did get a package though….

DavidEF:

Also, what is the Vf of these?

They are a 3v LED and will be driven to the 2000ma range at like 3.2-3.4 IIRC. You will definitely need to regulate current with a nanjg or something. 2000ma for most small lights, up to 2500ma with a perfect thermal path and good heat sinking.

Don’t let these things fool you either. With Cree LEDs as long as you are still gaining output by adding current your basically safe if your heat sinking is able to dissipate the heat. With these that is not the case. You can drive them to 4000ma and still see positive gains, have perfect cooling, but the emitters WILL FAIL prematurely doing this. Could be within moments or in a month but it will happen. When it does the LEDs boil and turn black, some will even explode LOL… QC on these is “interesting” I’ve had strings of them before that even had the + mark on the top side be incorrectly placed… All of the ones I sent for this thread did have the + mark correct though

Reminder: These are not a toy. If you power them on without proper colored glasses you will damage your eyes. Immediate eye strain will be apparent. Even if your working with them in the day light you need protection……

Look forward to seeing what you all create!!!

snakebite · 2019-08-25T02:00:04.000Z

i wound up with a supposedly defective 395nm ink curing uv light from a printing press.
its a big water cooled array of multi die modules.
i am going to see about making a flashlight with just one module.
the scorpions will glow then go up in smoke!
i suspect your project these leds came from would do much the same.

Cereal_killer · 2019-08-25T05:44:51.000Z

Matt sent me the couple I was gonna use and several others marked “maybe”, I tested them all and they do work so if anyone would like a few who didn’t get any PM me your info and I’ll send you some of the confirmed working “maybe” ones.