UV KeyChains base on CREE 395/405 LED Chip

[**DONOTDELETE**]

Hello guys

This is Ken Ma from Hong Kong. I'm currently selling UV KeyChain to earth people. Shipping is world wide.

You can get a better idea of what it is on my auctions on ebay. Just search the seller ID "auction_ma" and you will see the most updated description.

Stingmon(Johnson) from LED Museum has a review on my company's UV LED Lamps. Please go to http://ledmuseum.home.att.net/ledvio.htm
for more details.

Pricing:
1pc USD8/pc
10pc USD7/pc

Shipping & Handling:
$5 for 1pc
+$1 for each additional item if you order more than one piece.

My company's WWW is WILYCON (http://www.LED-CENTER.com)

email me at ken@led-center.com

Thanks for looking

Ken Ma

[sylvestor]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LED-Center:
Hello guys

This is Ken Ma from Hong Kong. I'm currently selling UV KeyChain to earth people. Shipping is world wide.

You can get a better idea of what it is on my auctions on ebay. Just search the seller ID "auction_ma" and you will see the most updated description.

Stingmon(Johnson) from LED Museum has a review on my company's UV LED Lamps. Please go to http://ledmuseum.home.att.net/ledvio.htm
for more details.

Pricing:
1pc USD8/pc
10pc USD7/pc

Shipping & Handling:
$5 for 1pc
+$1 for each additional item if you order more than one piece.

My company's WWW is WILYCON (http://www.LED-CENTER.com)

email me at ken@led-center.com

Thanks for looking

Ken Ma<HR></BLOCKQUOTE>

Hi Ken,

I'm finding it very difficult to come up with a cheap way to send you money for the UV keychain. It costs too much money to send cash through registered mail. If you find an easy way for users to make payments to you, then you will have more customers.

thanks,

sylvestor

images/icons/confused.gif images/icons/confused.gif images/icons/confused.gif

[**DONOTDELETE**]

Hi,
I also would like to purchase UV keychain and some LEDS, but Ken can not accept a credit card payment through Paypal, and i can not send funds to Paypal from a bank unless I have a US bank account!
I am stuck too!

[sylvestor]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by davidc:
Hi,
I also would like to purchase UV keychain and some LEDS, but Ken can not accept a credit card payment through Paypal, and i can not send funds to Paypal from a bank unless I have a US bank account!
I am stuck too!<HR></BLOCKQUOTE>


Hey Guys,

I had the same problem. I do have a Canadian Bank account that I could hook Paypal into. But for peace of mind, I opted not to allow paypal access to my bank account. I did send cash through the mail to Ken. I only did this last week, so I'm sure he has not received it yet. I had to pay $10.00 to send it registered mail. But that's better then having paypal freely access to my bank account. So in conclusion, use registered mail. While you are at it, you might as well order 2 keychain LED's.

sylvestor.
images/icons/cool.gif images/icons/cool.gif

[Darell]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LED-Center:

You can get a better idea of what it is on my auctions on ebay. Just search the seller ID "auction_ma" and you will see the most updated description.
<HR></BLOCKQUOTE>

Hi Ken -

Here's the link to your auctions Ken's eBay Actions (http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewListedItems&userid=auction_ma&include=0&since=-1&sort=3&rows=25)

Unfortunately it is blank right now. Anybody have a jpg of one of these lights?

Thanks,
Darell

[Darell]

Ah, here it is - keychain light (http://www.led-center.com/auction/images/UV%20KeyRing%20-%20Packing%20for%20gallary.jpg)

Will you be putting more up for auction?

[Michael Hansen]

Same problem here.... :-(

Michael

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by darell:
Ah, here it is - keychain light (http://www.led-center.com/auction/images/UV%20KeyRing%20-%20Packing%20for%20gallary.jpg)
<HR></BLOCKQUOTE>

And here's a page about them: http://ledmuseum.home.att.net/wilycon1.htm

I took it out yesterday and did some testing.
Among other things, it lit up the strip in a $10 bill like a highway flare. It wasn't dim at all; it really, really stood out.
The strip in a $20 wasn't as bright, but still very visible. I still have the $20 so I'll take a picture and put it on the above listed page.

The light was gone when I looked for it this morning. Had it for two days and lost it already... but after searching everyplace for the little light, I eventually found it clipped to a piece of clothing in the wash pile. images/icons/blush.gif

Suffice it to say, it works well for its primary intended purpose - checking money and other official documents.

[Darell]

Thanks Craig -

Oh - Nice. Hadn't seen the new page on it! I'm still trying to figure out just how much visible light this thing puts out. I'm guessing it would be pretty dismal as a flashlight. My niece just loves purple, and I've gotten her hooked on LED lights... but she doesn't have much use for checking cash. I'll probably have to order a couple just to play with them...

- Darell

[vcal]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by darell:

I'm guessing it would be pretty dismal as a flashlight. My niece just loves purple, and I've gotten her hooked on LED lights... but she doesn't have much use for checking cash. I'll probably have to order a couple just to play with them...
- Darell<HR></BLOCKQUOTE>
A word on the "pen" style UV (guessing 410-420 nm) light. This one was also gotten from Ebay for $10., and I like it for the following reasons:
1. it puts out a concentrated spot.
2. cheap, easily replaceable batteries (which can be switched to better ones).
3. while able to expose strips on bills, and bar codes on postal envelopes, it also drives all my glowaholic materials (AlienSkin, extremeglow strips, Lumibrite Pulsar/Seiko/Lorus watch dials etc.) to crazy levels of brightness images/icons/shocked.gif

This light appears light blue if you glance (momentarily) into it, but is very purplish when shone on light colored surfaces, and does make a decent low-powered light when used in dark situations. Imo-for it's price, I'm finding it surprisingly useful, and now carry it clipped into my shirt pocket regularly.

p.s.darell-this wouldn't be the light for your daughter to play with (even tho it's really a near UV emitter)..

[Darell]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by vcal:
near[/I] UV emitter)..<HR></BLOCKQUOTE>

No, no. Thanks for the concern though. I'm willing to loving abuse my dog in the name of science, but I'm trying my best to allow my daughter to outlive me. I have a 17-year-old niece who would be thrilled to giggles with a "purple" light though. Interesting that it actually does work as a visible light somewhat. I supposed that would be quite subjective to each person's visual sensitivity on the top of the spectrum. Nothing else to do but buy one and find out for myself, I guess.

-Thanks,
Darell

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by darell:
A word on the "pen" style UV (guessing 410-420 nm) light. This one was also gotten from Ebay for $10., and I like it for the following reasons:<HR></BLOCKQUOTE>

I have one of the Ebay lights too. The barrel is a gold in color, not green like Ken's. And it writes in black ink, instead of blue.
The gold version is also brighter than Ken's, and has a wider beam.

Ken's appears to be around 400nm, while the gold ebay one looks closer to 408 or 409nm and it has some extra fluorescence occuring in the LED case itself. That's why it looks bluer than you think it should when viewed on-axis.
But if you fire it up alongside a typical blue LED, it does appear very noticeably violet.

If I had to choose which one to put in my pocket, I might have some problems.
While the Wilycon pen is substantially dimmer, it is also a shorter wavelength and may be better for specific checking of fluorescence. The ebay pen is brighter and projects a more noticeable royal purple beam.
Both of them should eat batteries like there's no tomorrow though, so extras should be kept around the house.

[vcal]

Craig, the gold one is what I got, (that also writes with black ink) and came w/xtra 12 cells. Btw-I've switched over to 3 of the #393 S.O.s with over 3x the capacity (75mA), and like it much better.
-You're so Right about those little dinky LR-41s.

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Did not notcie many replies here.

Paypal does reserve the right to claim back $$ from any account within their system for upto 180days. That's why taking a CC payment is not a choose from me.

Anyway, I know that paypal has a option of paying by eCheck. I'm not yet figured out how it works. Maybe you just write a check to them and deposit to your account as paypal funds and pay it to online seller. I'll see...

For that UV Pen, I'll sell it for USD10 and USD5.00 S/H to most of countries in the world(depends on my local postoffice available destination that I can ship). Extra 12pc batteries included. Each 3pcs of battery add USD1.00 images/icons/smile.gif

email me for details.

Ken

[The_LED_Museum]

A few weeks ago, I bought some 395nm and 405nm LEDs from Ken, and they arrived today, pretty much right when they were expected. I'm quite happy with them.

The 395s are noticeably shorter in wavelength than the very first "sample" 395nm LED I was sent in November, and as such they do better in fluorescence applications like currency checking and illuminating fluorescent materials.
And I finally got to permanently install one in my computer. The super purple color looks really cool in there with the existing blue indicators.

How about a Trek-3 flashlight in super deep violet? Cat urnie in the rug shouldn't be able to hide from that. images/icons/shocked.gif

I haven't had a chance to try the 405s yet, but I expect to be satisfiied with those as well. I expect to use a couple of them in some rainbow spectrum lights and keep a couple on hand for spares and for future testing.

[**DONOTDELETE**]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by telephony:
And I finally got to permanently install one in my computer. The super purple color looks really cool in there with the existing blue indicators.
<HR></BLOCKQUOTE>

That means you will have greatly increase your chance of directly looking at the lovely "purple" light! take care!

Ken

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LED-Center:
That means you will have greatly increase your chance of directly looking at the lovely "purple" light! take care!

Ken<HR></BLOCKQUOTE>

Not to worry. My computer console & the violet LED are well off-axis from my normal viewing area while at my keyboard, and the LED is behind a piece of dark smoked plastic. It is also deeply countersunk in a thick bezel.

I don't see the LED directly until I'm sitting on a couch ten feet away from it. images/icons/smile.gif
Overall radiation exposure is probably a few picowatts at most. Well within CDRH Class 1 limits.

[Darell]

Hi Ken -

I was finally thinking of ordering a few of these lights - but I wondered if you've come up with a more elegant solution than "tape on the battery" to prevent a short?

Any product updates? My finger is hovering over the "Send Money" PayPal button...

Thanks,
Darell

[**DONOTDELETE**]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by darell:
Hi Ken -

I was finally thinking of ordering a few of these lights - but I wondered if you've come up with a more elegant solution than "tape on the battery" to prevent a short?

Any product updates? My finger is hovering over the "Send Money" PayPal button...

Thanks,
Darell<HR></BLOCKQUOTE>

Actually, I've few different design of them images/icons/smile.gif
But not yet tell anybody out there images/icons/smile.gif I'm thinking to send it to Johnson after Chinese New Year images/icons/smile.gif

Ken

[Darell]

Well, that's great news. I guess I'll wait for Craig's review. New Year's is coming righ up!

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by vcal:
Craig, the gold one is what I got, (that also writes with black ink) and came w/xtra 12 cells. Btw-I've switched over to 3 of the #393 S.O.s with over 3x the capacity (75mA), and like it much better.
-You're so Right about those little dinky LR-41s.<HR></BLOCKQUOTE>

I just tried silver oxide cells in mine, and it seems to be brighter than it was before.
My pen needs 4 of the little buggers though. It won't work at all with 3 cells and you can hear them rattle in there when the pen is shaken.

My other UV pen (the 405-407nm gold colored one I got on ebay first) uses 3 cells.

Both pens seem to have the same Uniroyal Optoelectronics dice inside their LED.

[vcal]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by telephony:
I just tried silver oxide cells in mine, and it seems to be brighter than it was before.
My pen needs 4 of the little buggers though. It won't work at all with 3 cells and you can hear them rattle in there when the pen is shaken.

My other UV pen (the 405-407nm gold colored one I got on ebay first) uses 3 cells.
Both pens seem to have the same Uniroyal Optoelectronics dice inside their LED.<HR></BLOCKQUOTE>
Craig-are you saying you were able to put 4 of the type #393 cells in that other pen??
If so, did you get that one from Led Center?
-I think I want one of those images/icons/tongue.gif

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by vcal:
Originally posted by telephony:
I just tried silver oxide cells in mine, and it seems to be brighter than it was before.
My pen needs 4 of the little buggers though.<HR></BLOCKQUOTE>
Craig-are you saying you were able to put 4 of the type #393 cells in that other pen??

The pen that takes 4 cells is the LED-Center model that Ken is selling. This is the pen with the green body and the protruding LED with a peak wavelength in the 394-397nm range.

The "other" pen was one I found on ebay before Ken showed up. It has a gold body, a recessed LED, and uses 3 cells. It's LED appears to have a bluer peak wavelength in the 405-408nm range.

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LED-Center:
Actually, I've few different design of them images/icons/smile.gif
But not yet tell anybody out there images/icons/smile.gif I'm thinking to send it to Johnson after Chinese New Year images/icons/smile.gif

Ken<HR></BLOCKQUOTE>

Ken,

I have an idea of how to do this that may eliminate the tape. If this "LED treatment" isn't patented in and of itself, you may find it of use. Check the mail in your led-center.com mailbox.

[Darell]

... And please keep us updated. I'd sure like to buy a couple "tapeless" models soon.

Happy New Year, BTW.

[TrevorNasko]

i want one to drop in my impact images/icons/shocked.gif

[sylvestor]

Ken,

Can you confirm if you sent out my 2 UV keychains replacements ?

thanks

sylvestor. images/icons/confused.gif images/icons/confused.gif

[sylvestor]

Does anyone know if this company is still in business ? They confirmed receiving my cash back in December, but I have not received the key chains nor any replies to my recent e-mails ?

thanks,

sylvestor images/icons/mad.gif

[Gransee]

It's Chinese new year until the 22nd. That maybe why you haven't heard from Ken. I am sure he will be back soon.

Peter

[sylvestor]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Gransee:
It's Chinese new year until the 22nd. That maybe why you haven't heard from Ken. I am sure he will be back soon.

Peter<HR></BLOCKQUOTE>

Thanks Peter,

You were correct. I heard back from him today. He did say he was celebrating Chinese New Year..... He also said he would send me my 2 key chains. (But after waiting 2 months, the anticipation has decreased)

sylvestor.

[Darell]

Ken - how are the new UV's coming along?

[Darell]

Ken? You there? What's the status of your customer's shipments? Any new product announcements? Haven't heard much out of you lately...

[vcal]

I've emailed this guy twice in the last 10 days and haven't heard a thing images/icons/confused.gif

[**DONOTDELETE**]

Hello guys images/icons/smile.gif

I was too busy about making some 12V DC LED stuffs images/icons/smile.gif for UV base LED stuffs, yes I've the matal made UV light images/icons/wink.gif I need to pick up my digital camera to get some quick shot for u guys images/icons/smile.gif images/icons/rolleyes.gif

however, he's keychains were sent last year at the first attempt and I send it one more time yesterday. It's a total lost for me. Well Happy New Year for me images/icons/smile.gif no problem!

Ken

[vcal]

Hi Ken,
I am needing some discreet (loose) UV LEDs-couldn't find them on your site.
-Can you email me?
Thanx

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by mr.glow:
I've emailed this guy twice in the last 10 days and haven't heard a thing images/icons/confused.gif<HR></BLOCKQUOTE>


I bet he just had too much sake (or the Chinese equivalant) on Chinese New Year's Eve. That'll take you out for a couple -a- weeks. Pooping, puking, packs of tums & alka-seltzer, roll after roll of bungwipe, all the burnt out Chinese paper lanterns, little red scraps of paper from firecrackers, that sulfurous, slightly urinous odor in the air, pieces of a large green paper dragon, half-full bottles of "alcoholic beverage" still lying on the floor in front of the TV, the whole kit & caboodle. That's Chinese New Year for you.
:-o

HOPE YOU HAD A GOOD ONE KEN!!

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by mr.glow:
Hi Ken,
I am needing some discreet UV LEDs<HR></BLOCKQUOTE>

tHEN YYOU NEED TO GO TO DE-JA-VU ON 1ST & PINE. VERY DISCREET, THEY WON'T EVEN TELL YOUR WIFE. images/icons/smile.gif

[Darell]

Well, there you are! Welcome back.

I'm glad to hear you're taking care of your customers.

So, while we're waiting for the pictures, what can you tell us about the new UV keychains? Give us the specs, and we'll have Craig tell us what it all means....

[**DONOTDELETE**]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by The LED Museum:
tHEN YYOU NEED TO GO TO DE-JA-VU ON 1ST & PINE. VERY DISCREET, THEY WON'T EVEN TELL YOUR WIFE. images/icons/smile.gif<HR></BLOCKQUOTE>

hahah You are making fun with guys images/icons/smile.gif

Johnson, do you able to light up 12V DC's LED? Also, for all other guys want to see the bullet UV keychains, here is the image I got from my scanner images/icons/grin.gif Bullet UV - KeyChain Light On.jpg

[**DONOTDELETE**]

image again...

http://www.led-center.com/images/Bullet UV - KeyChain Light On.jpg

[**DONOTDELETE**]

no idea of why it doesnt work images/icons/frown.gif

here is the address for IE http://www.led-center.com/images/Bullet UV - KeyChain Light On.jpg

and I'll try again if you see pic below. http://www.led-center.com/images/Bullet%20UV%20-%20KeyChain%20Light%20On.jpg

[vcal]

Ok, Ken-does that new bullet light take L.R.44 (#76) or those little L.R.41s (AG-3)?
-And the price? images/icons/smile.gif

[**DONOTDELETE**]

The price is a bit higher images/icons/smile.gif expect a dollar higher than the plastic one because it comes with 4pc AG3 replacement batteries images/icons/smile.gif

Ken

[vcal]

Ok, but can you possibly help me get any loose LEDs?-and I promise I'll be "discreet" images/icons/tongue.gif images/icons/smile.gif images/icons/grin.gif

[The_LED_Museum]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by LED-Center:
hahah You are making fun with guys images/icons/smile.gif

Johnson, do you able to light up 12V DC's LED? Also, for all other guys want to see the bullet UV keychains, here is the image I got from my scanner images/icons/grin.gif Bullet UV - KeyChain Light On.jpg<HR></BLOCKQUOTE>

De-Ja-Vu is one of those hooker joints. You go there to get a douchebag with 1 tooth and boobs that sag down to her ankles. Yech. O well that's the price you pay for living in the retail district of a big city. images/icons/grin.gif

As for lighting up stuff, I can do 0 to 40 volts no problem. 0 to 12 volts I can get an amp or two, and 13 to 40 volts I can get 0.2 amps. All fully adjustable and current clamping of course. I wouldn't be a respectable LED joint if I couldn't light the things up. images/icons/grin.gif images/icons/grin.gif images/icons/wink.gif images/icons/grin.gif images/icons/grin.gif

[**DONOTDELETE**]

Loose LED? why don't you mail me? images/icons/smile.gif

I could not find your email right now, please resend images/icons/smile.gif

Notice: I got new samples today! new designs also! look at the pic of my keychain right now, very heavy images/icons/smile.gif images/icons/smile.gif images/icons/grin.gif images/icons/smile.gif images/icons/smile.gif
http://www.led-center.com/images/uv_all.jpg

Ken

[**DONOTDELETE**]

Johnson: I'll see what I can get you the 12V goods. The prototype is out, samples were test. so far so good images/icons/smile.gif

Ken

[B@rt]

I have the one on the right, it is being sold as a money-detector overhere. Takes 4 AG-3 cells (already installed), with 4 spares. Made out of aluminum. Priced at 7 Euro (at Conrad Electronics), but I bought mine as a novelty-item for 3 Euro images/icons/grin.gif images/icons/grin.gif images/icons/grin.gif

[**DONOTDELETE**]

Good for you black! images/icons/smile.gif But I will not sell the right one, the design of it is just terrible! I've spared it out for my friends and all of them didn't like it. Then the other 2 designs come out images/icons/smile.gif images/icons/smile.gif images/icons/smile.gif

Ken

[B@rt]

Ken, please explain why the design is terrible, I like it most because it is sleek, the most simmetrical... and.... http://www.candlepowerforums.com/ubb/icons/icon15.gif stylish images/icons/cool.gif
The second one from the left to me ,has much more resemblance to a certain pill, not the kind you swallow orally
images/icons/shocked.gif


btw. exactly what kind of led is used in there?