Interesting ...

[Jim Newman]

On 02/01/2015 14:56, Arfa Daily wrote:

EE Times article that came to me by email today

http://www.electronics-eetimes.com/en/the-big-lie-about-led-lighting.html?cmp_id=7&news_id=222923405


Arfa

Some very interesting maths there certainly. Particularly how he comes
up with "a 25% failure rate" for LEDs.

I consider that a valid reason for disregarding anything he has to say
about the matter.

 

[Leif Neland]

Tim Watts forklarede:

As it happens, I will be using LEDs in a number of relatively open fittings
(GU10s ion the end of stalks, plenty of air), 3 very low power GU10s in
downlighters (2-3W range) as night lighting in the hall.

Consider using red leds for guide lights at night, it makes it easier
to go to sleep again if you have to get up at night.

Leif

--
Husk křrelys bagpĺ, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.

 

[Tim Watts]

On 06/01/15 20:12, Leif Neland wrote:

Tim Watts forklarede:

As it happens, I will be using LEDs in a number of relatively open
fittings (GU10s ion the end of stalks, plenty of air), 3 very low
power GU10s in downlighters (2-3W range) as night lighting in the hall.

Consider using red leds for guide lights at night, it makes it easier to
go to sleep again if you have to get up at night.

Leif

Very good idea! You can get coloured GU10s IIRC.

This will show through the front door glass (bedrooms are downstairs) so
we might get mistaken for a knocking shop, which would add some interest
to our daily humdrum lives

 

[Phil Allison]

Arfa Daily wrote:

Everybody who matters knows exactly who I am.

** Yeah - the grumpy old guy with a cigar hanging out his mouth...

I'm actually not Phil, but that grumpy old guy with a cigar hanging out of
his mouth is actually a good (online) friend of mine who I talk to pretty
much every day ...

** So you communicate with George Cole - err daily ?



..... Phil

 

[Vir Campestris]

On 05/01/2015 20:57, Leif Neland wrote:

The car only had run 460000km, not sure when, if ever, the spark plugs
had been changed.

That's pretty good - nearly half a million on one set of plugs.

Andy

 

[Rod Speed]

"Adrian Tuddenham" <adrian@poppyrecords.invalid.invalid> wrote in message
news:1lxudl8.6daboy1ethtdcN%adrian@poppyrecords.invalid.invalid...

Rod Speed <rod.speed.aaa@gmail.com> wrote:

Adrian Tuddenham <adrian@poppyrecords.invalid.invalid> wrote
[...]
For a given energy storage capacity, capacitors are smaller,
lighter and cheaper than metal-cored chokes, but it is a lot
more difficult to make them as reliable in the long term.

Yes, but in practice its long term enough with PC power supplys.

...but not when the PSUs also have to fit into the cap of a light bulb

Sure, but that doesn’t happen with the ones with an external power supply.

> and under-cut the price of the nearest rival.

Happens in spades with PC power supplys.

 

[Rod Speed]

Leif Neland <leif@neland.dk> wrote

Rod Speed wrote
Leif Neland <leif@neland.dk> wrote
Rod Speed wrote
Leif Neland <leif@neland.dk> wrote

So I hooked up the OBD-2 reader: Engine misfire cylinder 1.
I exchanged two "spark plug caps" which is really the ignition
coil and some electronics, one unit per cylinder.

Very unusual way to do things.

Here is the product page:

http://www.thansen.dk/product.asp?pn=-831477966

Price is USD 160, I got an used one for 24USD.

I have considered the Yaris but don't thing
I'll ever get one given that approach.

I find it a good approach,

I don't.

> omitting a distributor

No distributor in my Getz.

> and 5 cables which can be attacked by moisture.

But much more expensive to fix than replacing a cable.

I've never had to replace a distributor, the most I
have ever had to do is replace the rotor for peanuts.

Here everything high voltage is sitting nice and dry
almost inside the engine, below a plastic cover.

I've got a Hyundai Getz myself but likely won't be replacing
it unless it breaks dramatically. The previous VW Golf lasted
me 35+ years and I only needed to replace that when I was
stupid enough to no do anything about a known windscreen
leak after a windscreen replacement and that eventually rusted
out the floor and I could be arsed fixing that.

Alas, now it needs a new back door, because wife didn't
see I parked the Landcruiser outside the garage :-(

Should be able to get one of those cheap too given that
most of the writeoffs would be at the other end of the car.

I've sent off enquries to two dealers, including
a whole car with front damage for for 1000USD.

 

[Arfa Daily]

"Phil Allison" <pallison49@gmail.com> wrote in message
news:b8c25e4d-fd78-4f05-b6e0-ef7f500cbe24@googlegroups.com...

Arfa Daily wrote:

"Rod Speed"

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done
like
a fucking dinner, as it always is by everyone.

Everybody who matters knows exactly who I am.

** Yeah - the grumpy old guy with a cigar hanging out his mouth...

I'm actually not Phil, but that grumpy old guy with a cigar hanging out of
his mouth is actually a good (online) friend of mine who I talk to pretty
much every day ...

Arfa>

.... Phil

 

[Rod Speed]

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its
got done like a fucking dinner, as it always is by everyone.

 

[Arfa Daily]

I've been a regular visitor to Hong Kong since 2010 and just returned from
the worlds largest LED lighting show again in October. I import
commercial retrofits that are years ahead of what is available (or
"hawked") here in the US. As such, I have quality products and I'm aware
of the crap that is out there. My background is in lighting, electronics,
television and cinema and I'm well aware of color temperature and lumens.
Unfortunately, the customer whose heart is in the right place is usually a
victim in cases like you describe. The hacks that sell LED retrofit
by-and-large have no clue as to what options are available as they only
re-sell what some distributor (or DIY store) has in stock. There are
success stories but most likely they are due to dumb luck and not any
engineering. Don't get me started on their lack of optical knowledge,
lumens, color temperature or the relationship of rods and cones to pupil
lumens, CRI, and the horrible spectral response of HPS lamps. I have
relations with over 30 vendors in China and I can't tell you how cool and
well-made the lamps are becoming.

Here is a brief overview of light and the eye:

Cones and Photopic vision- The central part of the eye is the fovea that
is rich in a type of cells called 'cones'. Cones are responsible for color
vision and are involved in vision during bright light. This is called
Photopic vision.

Rods and Scotopic vision-Rods are sensitive to dim light and are active
during low light intensity conditions. Rods cannot perceive color. Vision
due to rods is 'black and white.'

Light measuring instruments measure Light intensity in Lumens -
considering only the response of the cones. Thus, the Lumens measured by a
light meter are also called Photopic Lumens.

In conditions of low light intensity entire vision is due to rod cells
(scotopic vision). In medium light intensity (conditions as are often
found under street lights and in homes) vision is called Mesopic vision
and is due to both rods and cones. Using 'Photopic Lumens' to describe
light intensity in such an area grossly underestimates the light intensity
as it totally ignores the contribution of rod cells to vision.

And I hate CFLs, too.

Yours truly,

Mr. Klay Anderson, D.A.,Q.B.E.

Interesting. I read that LPS street lighting is the most effectively
efficient lighting that there is in terms of (mesopic?) lumens per watt, as
the yellow colour lies close to the most sensitive frequency of the human
eye. For sure, the 40 watt LPS streetlights that were removed from my
village, to make way for some 45 watt high pressure discharge lamps with a
whiter output, were far - and I mean far - more effective at lighting the
street than these new ones, which produce harsh, sharply defined cones of
light, and leave pools of darkness between. One of the 'selling points' that
the local council published before the work was done, was that because the
light was 'whiter', colour rendition would be improved. That is actually not
true, because the overall light level that they produce, is not enough to
take your eye up into the colour perception range. They are also crap in
fog, compared to the LPS lamps that they replaced. To be honest, the yellow
light from LPS and golden light from HPS street lighting has never bothered
me. I've never really understood why colour rendition at night is of any
particular importance. Better I think that the air is 'saturated' with light
of any description, than to have lamps that produce concentrated 'patches'
of light that you might just about be able to see colour with, when you are
right underneath them.

I'm probably using wrong terms all over the place here, as I am no expert,
which clearly you are, but I'm sure you understand what I'm saying

Arfa

 

[Jeff Liebermann]

On Tue, 06 Jan 2015 18:55:32 +1100, F Murtz <haggisz@hotmail.com>
wrote:

Are those sideways less than more than symbols Carets? I thought that ^
is a carete and would such a caret before and after the URL work?

I think we've successfully demonstrated that the more trivial the
topic, the more attention it receives on Usenet.

For a personalized copy of my full confession for the capital crime of
using the wrong name, compounded by spelling it wrong, please send $1
to the address below.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

 

[Arfa Daily]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:ch13pfFep7eU1@mid.individual.net...

Arfa Daily <arfa.daily@ntlworld.com> wrote
Rod Speed <rod.speed.aaa@gmail.com> wrote
Arfa Daily <arfa.daily@ntlworld.com> wrote
Rod Speed <rod.speed.aaa@gmail.com> wrote
William Sommerwerck <grizzledgeezer@comcast.net> wrote
Rod Speed wrote

Much more likely he doesn't actually have a fucking clue about the
basics.

Arfa is an intelligent and knowledgeable person.

He clearly isn't on that particular question.

What particular question ?

The stupid claim that article he posted made about the
purported problem with a lot more components in a LED light instead of
the single one with the incandescent it replaced.

He didn't even notice that cars are MUCH more reliable than they used
to be even tho they have vastly more components than they
used to have. In spades with computer cpus and memory alone.

You are unbelievable.

We'll see...

How did you manage to extrapolate that mindless crap from my original
post ?

The article you mindlessly posted clearly claimed that when there are
lots more components in the LED light than in the incandescent light it
replaced, that that was absolutely certain to guarantee that it would
have a shorter life than the incandescent it replaced. Pigs arse it
does.

reams of your puerile shit any 2 year old could
leave for dead flushed where it belongs

Wahey ! And again. Nothing new to say, so just snip anything of relevance to
try and justify yourself, and then say the same thing over again. You really
are a fuckin robot, aren't you ? Just do everybody a favour, and get back to
your kangaroo shagging ...

Arfa

 

[Arfa Daily]

"tony sayer" <tony@bancom.co.uk> wrote in message
news:4T5NatC1s9qUFwt4@bancom.co.uk...

In article <NHHqw.502114$tr6.474642@fx15.am4>, Arfa Daily
arfa.daily@ntlworld.com> scribeth thus


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:cgubooFnch2U1@mid.individual.net...
Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done
like
a fucking dinner, as it always is by everyone.

Everybody who matters knows exactly who I am. You are just not one who
*does* matter Rod. The email address is valid. I'm sure if you were clever
enough to be able to look it up, you could get me right down to a street
address. As for me writing puerile shit, the words pot, kettle and black
come to mind. Most of what you write is *total* shit that no one wants to
hear, and frequently tell you so. But you are so full of yourself and your
opinionated crap, that it all goes over your head. Much like certain other
of your countrymen, as soon as anyone dares to call you out on your
mindless
pontifications, you just revert to type, and start screaming
bucket-mouthed
abuse. Why don't you just do everyone a big favour, and piss off for
another
six months like you often do. And where are you when you do disappear ? In
jail, with any luck ...

Arfa

- or Geoff, if you prefer


Don't know why you bother with him Arfa, just killfile the prat thats
what I did ages ago!...
--
Tony Sayer

Playing with him amuses me, Tony ...

Arfa

 

[Arfa Daily]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:ch13jbFeo1uU1@mid.individual.net...

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done like
a fucking dinner, as it always is by everyone.

You see ? There you go again. Nothing new to say, so hey, just say exactly
the same thing over again. Clever ? Not as such. And let's just analyze the
content, shall we ? "A gutless fuckwit desperately cowering behind ..."

So, gutless ? Why would I need 'guts' to talk to a twat-headed moron like
you ? Desperately cowering ? Why in your wildest dreams would you believe
that anything you could do or say on here would make me desperate or want to
hide from you ? Using a nic ? So what ? Loads of people do. I've used it for
15 years or more. It's a bit of a laugh - too subtle for you of course, but
again, anyone who matters - that's not you - knows the story behind why I
use it. I don't 'hide' behind anything. As I said to you before, the email
address is valid, and I don't hide or change anything in the headers of
anything I post. If you are that desperate to know who I am, work it out.
But I suppose you are too thick to do that.

You are a total waste of space and bandwidth. Nobody is actually interested
in anything you have to say ...

Arfa

 

[Rod Speed]

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its
got done like a fucking dinner, as it always is by everyone.

 

[Huge]

On 2015-01-06, Bob Eager <news0005@eager.cx> wrote:

On Mon, 05 Jan 2015 21:31:00 -0500, Phil Hobbs wrote:

Brr. Ledu is a crappy knockoff of Luxo. I got one by mistake, and it
rapidly went into the trash. Trust me, the $200 a real Luxo costs is a
bargain in the long run.

Indeed. I got a secondhand Luxo in 1974, and it finally packed up a
couple of years ago. It was of course replaced by...a Luxo. We also have
a couple of ten year old ones on our office desks at home, one right next
to me here.

Highly recommended, if you have a couple of hundred 100W incandescents
stashed in a cupboard like mine.

And mine.

And mine. But I have a 5W CFL in my Anglepoise and I'm perfectly happy with
both.

--
Today is Boomtime, the 7th day of Chaos in the YOLD 3181
I don't have an attitude problem. If you have a problem with my attitude,
that's your problem.

 

[bm]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:ch3jgpF4b23U1@mid.individual.net...

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done like
a fucking dinner, as it always is by everyone.

LOL

 

[Arfa Daily]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:ch3jgpF4b23U1@mid.individual.net...

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done like
a fucking dinner, as it always is by everyone.

And you call me a fuckwit. You are just a dopey saddo who everybody laughs
at. Go get a life, arsewipe.

Plonk ...

Arfa

 

[Arfa Daily]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:ch3jhtF4b4kU1@mid.individual.net...

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its got done like
a fucking dinner, as it always is by everyone.

Twat, thrice over ...

Arfa

 

[Rod Speed]

Some gutless fuckwit desperately cowering behind
Arfa Daily <arfa.daily@ntlworld.com> wrote just the
puerile shit that always pours from the back of it when its
got done like a fucking dinner, as it always is by everyone.