On Mon, 28 May 2007 11:36:28 -0500, wrote:

Go ask Jackson,Mississippi (I live here) what kind of traffic lights
they use.
cuhulin


Candles ? or have they updated to kerosene ?? ;o)
rj

"" wrote:

On Mon, 28 May 2007 11:36:28 -0500, wrote:

Go ask Jackson,Mississippi (I live here) what kind of traffic lights
they use.
cuhulin

Candles ? or have they updated to kerosene ?? ;o)
rj


Campfires and smoke signals?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

I reckon y'all haven't been to Jackson,(I like it here,please don't hate
me) Mississippi before?
cuhulin

Yesterday,Goobernor Haley Barbour was in Batesville,Mississippi.General
Electric is going to build a Jet engines parts (fan parts,something like
that) factory in Batesville.(old news to me,I have known about it since
last year) The G.E.parts factory will be up and running in early
2009.(Rolls Royce has a Ship/Boat engine factory in South
Mississippi.y'all would be supprised at what is in Mississippi,prettiest
gals in the World too)
There is a bulding boom going on in many places in Mississippi.

Candles,campfires,smoke signals? What? no traffic lights? Let me step
back up on that chair,it's getting ''deep'' in here.
cuhulin

Sheeeeeeettt,,,, Terrell,,,, I thought you had at least a half corpuscle
of brain matter.(smoke signals)

International Star (them truck people cats) in cahoots with West
Point,Mississippi, (I did not say West Point,New York.I like New York)
lookin kind of like West Point,Mississippi is/might be going to be
building some Militaty V shaped belly bottom Military vehicles for our
U.S.Troops.

Don't try your Florida sissyness on me.I am too old a cat to get screwed
by a kitten.

I Salute you,SIR!
cuhulin

Greetings;

I noticed that Edmonton has a few traffic lights with LED arrays. I like
the WALK light since it's so much brighter and easier for me to see. It
would be most interesting to find out how the lights deal with Alberta's
harsh winters.

By the way, the chips in those multi-colour LED lights cause considerable AM
RFI. Straight LED arrays don't as far as I've noticed. I have 4
floodlights and 3 reading lamp bulbs which don't bother the radios at all.
The only LED bulb causing interference is that multi-colour one. I guess
the traffic bulbs have some sort of switching or power supply which causes
the interference.

Sincerely,

Bruce Atchison - author of When a Man Loves a Rabbit (Learning and Living
With Bunnies).
http://www.bookadz.com/batchison.htm
http://www.bookstream.biz/cgi-bin/bo...s&store_id=102



--
Posted via a free Usenet account from http://www.teranews.com

In message , Bruce Atchison
- author writes
Greetings;

I noticed that Edmonton has a few traffic lights with LED arrays. I like
the WALK light since it's so much brighter and easier for me to see. It
would be most interesting to find out how the lights deal with Alberta's
harsh winters.

By the way, the chips in those multi-colour LED lights cause considerable AM
RFI. Straight LED arrays don't as far as I've noticed. I have 4
floodlights and 3 reading lamp bulbs which don't bother the radios at all.
The only LED bulb causing interference is that multi-colour one. I guess
the traffic bulbs have some sort of switching or power supply which causes
the interference.


Aren't some LEDs pulsed in order to get higher average intensity? This
might be a cause of RFI.
Ian.
--

In article ,
Ian Jackson wrote:

In message , Bruce Atchison
- author writes
Greetings;

I noticed that Edmonton has a few traffic lights with LED arrays. I like
the WALK light since it's so much brighter and easier for me to see. It
would be most interesting to find out how the lights deal with Alberta's
harsh winters.

By the way, the chips in those multi-colour LED lights cause considerable AM
RFI. Straight LED arrays don't as far as I've noticed. I have 4
floodlights and 3 reading lamp bulbs which don't bother the radios at all.
The only LED bulb causing interference is that multi-colour one. I guess
the traffic bulbs have some sort of switching or power supply which causes
the interference.


Aren't some LEDs pulsed in order to get higher average intensity? This
might be a cause of RFI.
Ian.

Not that I am aware of but a DC to DC step up supply might be used to
increase the voltage.

--
Telamon
Ventura, California

Whatever search engines y'all like,
How do LED Traffic Lights work?
cuhulin

On May 22, 8:50 am, bpnjensen wrote:
On May 20, 3:14 pm, "Brenda Ann" wrote:



"Joe Analssandrini" wrote in message

roups.com...

Have you tried any of theLEDflashlights? I bought several from AES.
They sell a model for $9.99 that is machined from aluminum and runs on
3 AAA batteries: "HOUSE OF DEALS 9LED/3AAAFLSLT*" see this listed at:


http://search.cartserver.com/search/...&cartid=a-6994...

It's the third item down. I have to tell you this thing is BRIGHT! AND
it's made as well as any MagLight I own. These will give you something
of an idea as to what can be done with LEDs. If this can be
accomplished with flashlights, I can't wait until they achieve this
level of lighting quality with homeLEDlight bulbs.

(I've even seen someLEDflashlights in the "Dollar Tree" store. They
have only 3 LEDs and are not as bright or as well made as the AES
models, but for only a dollar ... )

I used to think the multi-LEDflashlights were bright (and, indeed, compared
to a small incandescent flashlight, they are... but much more difuse). The
ones that are REALLY bright are theLuxeon® typeLEDlights. These are the
ones most likely to eventually make it into meaningful home lighting. I
have some 32LEDlamps that I use in various places. They are about the same
brightness level as the little 7 1/2wattsign bulbs (but of course use less
than onewatt). TheLuxeonis many times brighter, and with just a single
light source. These are quite a bit more expensive for the higher power
ones, but the 1wattand 3wattversions are coming down in price rapidly.

Not mine:http://cgi.ebay.com/5-WATT-LUXEON-LE...QQitemZ...Hide quoted text -

- Show quoted text -

I agree with Joe and Brenda about LEDs, and I cannot believe that the
powers that be have not jumped onto the bandwagon with these things.
Their potential is enormous. They are fairly cheap, last nearly
forever (maybe that's why?) and use a shred of the energy used by any
other viable light source.

Um, that's bull. CFLs are better then most (all?) current LED based
sources when it comes to luminous efficacy. True, they have other
problems and are unsuitable for small lights (torches, car lights etc)
and for some specialist stuff like traffic lights but LEDs to not yet
beat CFLs in terms or luminous efficacy. They will probably eventually
win but they're not winning yet. And actually most government (don't
know about US governments) would much rather have things that nearly
last forever. Perhaps not the manufacturers but that's a different
matter.