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'[EE:] Source for bright LEDs'
2004\04\22@145601 by Herbert Graf

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Looking to replace the indicator lights on my car with LEDs (why? because I
can... :) ).

Anyways, I tried some of the LEDs available locally to me but they aren't
bright enough.

Anybody know of a CHEAP source of BRIGHT red and orange LEDs?

I'd love to use white LEDs (MAN are they bright) but that's just too
expensive.

Prefer T1-3/4 size (5mm). I'm in Canada. Thanks for any leads.

TTYL

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2004\04\22@153343 by teven Kosmerchock

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Herbert,

Try:

http://dkc3.digikey.com/PDF/T041/1288.pdf

I have used both the RED and YELLOW in RC truck lighting systems
and they are pretty bright and inexpensive when compared to some.

Steve



>>> spam_OUThgrafTakeThisOuTspamEMAIL.COM 4/22/2004 11:55:59 AM >>>
Looking to replace the indicator lights on my car with LEDs (why?
because I
can... :) ).

Anyways, I tried some of the LEDs available locally to me but they
aren't
bright enough.

Anybody know of a CHEAP source of BRIGHT red and orange LEDs?

I'd love to use white LEDs (MAN are they bright) but that's just too
expensive.

Prefer T1-3/4 size (5mm). I'm in Canada. Thanks for any leads.

TTYL

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2004\04\22@161934 by Jeff Swayze

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Well, this is pretty self-serving, but it answers your question:

http://www.fatsquid.com/store/

I have LEDs for sale here as well as some other R/C stuff. I think the prices are reasonable.

-Jeff


Quoting Herbert Graf <.....hgrafKILLspamspam@spam@EMAIL.COM>:

{Quote hidden}

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2004\04\22@163411 by Stef Mientki

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try this one
http://www.lsdiodes.com/

Stef Mientki


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2004\04\22@172655 by Herbert Graf
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> Herbert,
>
> Try:
>
> http://dkc3.digikey.com/PDF/T041/1288.pdf
>
> I have used both the RED and YELLOW in RC truck lighting systems
> and they are pretty bright and inexpensive when compared to some.
>
> Steve

       Hmm, do you mean the ones at the bottom of that page? How many do you
typically need to emulate a "normal" bulb? They only say 80mcd, that
actually doesn't sound like much when compared to some of the surface mount
(and more expensive ones) on the following page.

       When running at normal full current, do you feel like "looking away"
because they are too bright? I know I can't stare at my white LED for very
long! :) Thanks, TTYL

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2004\04\22@172903 by Herbert Graf

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> Well, this is pretty self-serving, but it answers your question:
>
> http://www.fatsquid.com/store/
>
> I have LEDs for sale here as well as some other R/C stuff. I
> think the prices are reasonable.
>
> -Jeff

       Hmm, those are more like I'm looking for. Too bad you don't have yellow
ones, although I suppose I could get white ones (although they do have a
problem of the phosphur going after time.

       Are they "painful" to look in to while operating? :) Thanks, TTYL

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2004\04\22@175756 by Jinx

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Herbert, have you considered a single LED ?

(I've no idea who's convenient for you to buy off, so I'll just
throw this one in)

http://www.ledsupply.com/led-catalog-luxeon-leds-red-luxeons.html

http://www.ledsupply.com/led-kits.html

http://www.luxeonstar.com/

3 practical articles for Luxeon LEDs

http://www.siliconchip.com.au/cms/A_100504/article.html

http://www.siliconchip.com.au/cms/A_30851/article.html

http://www.siliconchip.com.au/cms/A_30805/article.html

Pre-emptive brake light

http://www.siliconchip.com.au/cms/A_100992/article.html

And if you want to look a dufus

http://www.siliconchip.com.au/cms/A_30589/article.html

SC also did a circuit specifically for a high-mounted brake light,
but that's not archived yet

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2004\04\22@182114 by gath Ekanayake

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Try 1,3 and 5 watt LUXEON  leds at http://www.prime-electronics.com.au . Not
cheap though but bright.

JC

>>> hgrafspamKILLspamEMAIL.COM 23/04/2004 6:55:59 a.m. >>>

Looking to replace the indicator lights on my car with LEDs (why?
because I
can... :) ).

Anyways, I tried some of the LEDs available locally to me but they
aren't
bright enough.

Anybody know of a CHEAP source of BRIGHT red and orange LEDs?

I'd love to use white LEDs (MAN are they bright) but that's just too
expensive.

Prefer T1-3/4 size (5mm). I'm in Canada. Thanks for any leads.

TTYL

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The views expressed in this email are those of the sender and do not
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2004\04\22@182735 by teven Kosmerchock

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You can look at them. It will put a nice little "spot" on the wall from
a few feet away.

Steve

{Quote hidden}

       Hmm, do you mean the ones at the bottom of that page? How many
do you
typically need to emulate a "normal" bulb? They only say 80mcd, that
actually doesn't sound like much when compared to some of the surface
mount
(and more expensive ones) on the following page.

       When running at normal full current, do you feel like "looking
away"
because they are too bright? I know I can't stare at my white LED for
very
long! :) Thanks, TTYL

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2004\04\22@182942 by PicDude

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I got some from Digikey for this purpose, with a few thousand MCD's each.  I experimented with viewing angle as well, as the brighter LEDs have narrow viewing angles.

Cheers,
-Neil.



On Thursday 22 April 2004 01:55 pm, Herbert Graf scribbled:
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2004\04\22@182944 by teven Kosmerchock

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Better yet try http://www.enluxled.com for their 22W AC powered "LED".
Just thought I'd throw that in ;-)

Steve

>>> EraseMEEkanayakeJspam_OUTspamTakeThisOuTLANDCARERESEARCH.CO.NZ 4/22/2004 2:59:06 PM >>>
Try 1,3 and 5 watt LUXEON  leds at http://www.prime-electronics.com.au . Not
cheap though but bright.

JC

>>> hgrafspamspam_OUTEMAIL.COM 23/04/2004 6:55:59 a.m. >>>

Looking to replace the indicator lights on my car with LEDs (why?
because I
can... :) ).

Anyways, I tried some of the LEDs available locally to me but they
aren't
bright enough.

Anybody know of a CHEAP source of BRIGHT red and orange LEDs?

I'd love to use white LEDs (MAN are they bright) but that's just too
expensive.

Prefer T1-3/4 size (5mm). I'm in Canada. Thanks for any leads.

TTYL

----------------------------------
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WARNING: This email and any attachments may be confidential and/or
privileged. They are intended for the addressee only and are not to be
read,
used, copied or disseminated by anyone receiving them in error.  If you
are
not the intended recipient, please notify the sender by return email
and
delete this message and any attachments.

The views expressed in this email are those of the sender and do not
necessarily reflect the official views of Landcare Research.

Landcare Research
http://www.landcareresearch.co.nz
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2004\04\22@201432 by Jason S

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Chi Wing is a major Hong Kong producer of LEDs.  They also sell their
products on ebay at very cheap prices.

Their store is here: http://stores.ebay.com/Chi-Wing-LED-product-shop

10 red 5000mcd LEDs are $3US including shipping from Hong Kong.
For 5000mcd white, it's $3.20, and the 10,000mcd whites are $13 for 50.

I've bought from them a few times; the LEDs are good quality quality, but
I've had some arrive not working (expect a 10% failure rate and you won't be
disappointed).  Shipping takes about 2 weeks, but for the price, I can't
complain about that.

Jason

{Original Message removed}

2004\04\22@210730 by Randy Glenn

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I've had good luck with an outfit called Besthongkong - they're on EBay
as well.

It was either 50 or 100 Blues for about $13 Canadian, shipped from Hong
Kong. Half as many white ones for the same price. Never really had a
problem with any not working. (Only problem was the newfangled pink one
I bought is now white, but I suspect I was putting too much through it)

-Randy Glenn

Jason S wrote:

{Quote hidden}

>{Original Message removed}

2004\04\22@211107 by Jinx

face picon face
Herbert, my apologies for duff Silicon Chip links. They appear
to have only a select few articles in full

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2004\04\23@015048 by William Chops Westfield

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On Thursday, Apr 22, 2004, at 11:55 US/Pacific, Herbert Graf wrote:
>
> Anybody know of a CHEAP source of BRIGHT red and orange LEDs?

Ebay.  Try http://stores.ebay.com/LED-Store  (I haven't used him
personally.)   Or stores.ebay.com/Chi-Wing-LED-product-shop
(I did buy some UV leds from them a couple years ago.)

BillW

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2004\04\23@092529 by Mike Hord

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I found a supplier direct type sale on Ebay a few months ago, got 50
REALLY bright white LEDs for around $20US.  They tended a little
more towards the blue end than pure white, but they were really
quite good.

Mike H.

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2004\04\24@102501 by Spehro Pefhany

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At 05:17 PM 4/22/2004 -0700, you wrote:


>I've bought from them a few times; the LEDs are good quality quality, but
>I've had some arrive not working (expect a 10% failure rate and you won't be
>disappointed).

Our China factory has two quality grades- one for North American and European
customers and a lower grade for Pakistan, India etc. that has more fallouts
and other floor-sweepings included. The price difference is 30% or 40% IIRC.
Maybe someone is reselling the low-grade units, kind of like Poly Paks did
in the US many years ago.

Similarly, my client in HK makes a product which sells in large quantity
for $0.50. A mainland competitor sells their equivalent for less than half
the price, but with 15% or 20% bad units. They don't mind that for the
price difference in third world countries, they just pay someone peanuts
to sort through them and try to fix the bad ones.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
@spam@speffKILLspamspaminterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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'[EE:] Source for bright LEDs'
2004\05\10@200453 by James Tu
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www.etronicstuff.com/

At 11:55 AM 4/22/2004, you wrote:
{Quote hidden}

James Tu
RemoveMEjamesTakeThisOuTspam2-bit-toys.com

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2004\05\10@201530 by John J. McDonough

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Your auto supply probably has some replacement bulbs made from LEDs.
Although when I tried some, I discovered that the polarity on my brake
lights is reversed!

B.G.Micro sometimes has some good prices on bright LEDs, but it's somewhat
variable.

DigiKey has some assemblies of multiple bright LEDs in bayonet mounts, but
they are no cheaper than the auto supply.  Their price on single LEDs seems
a tad high to me.

Dayton is coming up, last year I bought a fistful of bright white cheap
there.  Dunno where in Canada you are but a couple days ago I saw a note
from someone coming from Toronto or maybe Montreal, don't recall, down
through Windsor looking for riders.

72/73 de WB8RCR    http://www.qsl.net/wb8rcr
didileydadidah     QRP-L #1446 Code Warriors #35

{Original Message removed}

2004\05\10@213604 by Spehro Pefhany

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At 08:14 PM 5/10/2004 -0400, you wrote:
>Your auto supply probably has some replacement bulbs made from LEDs.
>Although when I tried some, I discovered that the polarity on my brake
>lights is reversed!
>
>B.G.Micro sometimes has some good prices on bright LEDs, but it's somewhat
>variable.
>
>DigiKey has some assemblies of multiple bright LEDs in bayonet mounts, but
>they are no cheaper than the auto supply.  Their price on single LEDs seems
>a tad high to me.
>
>Dayton is coming up, last year I bought a fistful of bright white cheap
>there.  Dunno where in Canada you are but a couple days ago I saw a note
>from someone coming from Toronto or maybe Montreal, don't recall, down
>through Windsor looking for riders.

I've got some fresh stock in of very bright (12,000-8,000 mcd) white and
green (13,500- 10,000 mcd) LEDs. First quality, a reasonable price
and cheap shipping.

E-mail off list if you're interested.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
TakeThisOuTspeffEraseMEspamspam_OUTinterlog.com             Info for manufacturers: http://www.trexon.com
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2004\05\10@224815 by Michael Olson

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Also try http://www.lsdiodes.com, they have some beautiful sea green and orange
ones. You might find the 5mm R/G/B
(http://www.lsdiodes.com/5mm/5mmfullspectrum.htm) to be of particular
interest.

Now, my own question. Does anyone know a good place to get interesting
color LEDs (Blue, Sea Green, Violet, etc..)
in *low* intensities. Its easy to find spotlight power ones, but I'd
like a blue with a wide viewing angle and reasonable
intensity for use as indicator lights? I was thinking of grinding the
end of a blue flat and then just underpowering it, but I'd
love to find a nice packaged solution.

-- Mike Olson

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