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Subject:
Re: dash lights
Date: Tue, 14 Aug 2007 11:39:43 -0500
From: Carl K <carl(at)personnelware.com>
Subject: Re: dash lights
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LED`s draw much less current for the same amount of light, mainly because they
don`t get hot, also because they don`t use the whole spectrum of visible light
(not sure what the deal is with white ones, but I bet they have a different
`look` than incandescent.)
Carl K
Tom in Missouri wrote:
> Since I haven`t seen them, I can`t truly comment. However, most LEDs I have
> seen are more directional in how they shine their light. The light in a
> dash is more about spreading around to cover the instruments. As long as
> the light gets directed over the instruments, I guess that would work.
>
> Another issue would be current. If their current requirements are higher
> than the existing bulbs, you might have to worry about wiring issues. This
> is an issue with `63 Corvettes. They were designed for one bulb, the `64 up
> for the 1157 which is brighter but with more current. So there is a warning
> to not use them in the taillights of `63s. I don`t know anyone who has ever
> had a problem, however, there was a concern by Chevrolet years ago.
>
> I don`t think it is likely, but I guess on an old wiring harness, you could
> heat the dash wires up and have a problem.
>
>
>
> "labtech_one" <labtech_one(at)yahoo.com> wrote in message
> news:46c1891b$0$30635$4c368faf(at)roadrunner.com...
>> I`ve ready that the bulbs in the dash, on a C4 can be replaced
>> with 194 bulbs and appropriate bulb holders.
>>
>> good side is the bulbs are cheaper, and easier to get
>> but the down side is the dash is dimmer.
>>
>> has anyone, replaced the bulb holders, and used
>> those high intensity LED replacement 194 bulbs ?
>>
>> they shouldn`t burn out ( thats a plus ), they are
>> a bit pricey ( but worth it I would think )
>>
>> Question is the brightness, in side markers they do
>> rather well, can hardly tell them from a bulb. But
>> not sure how they`d do in the dash.
>>
>> has anyone tried this ?
>>
>>
>
>
SUBJECT: Re: dash lights
From: "labtech_one" <labtech_one(at)yahoo.com>
Subject: Re: dash lights
Date: Tue, 14 Aug 2007 18:20:06 -0400
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"Tom in Missouri" <toomuch(at)spam.com> wrote in message
news:13c3evcitqhibf0(at)corp.supernews.com...
> Since I haven`t seen them, I can`t truly comment. However, most LEDs I
have
> seen are more directional in how they shine their light. The light in a
> dash is more about spreading around to cover the instruments. As long as
> the light gets directed over the instruments, I guess that would work.
>
> Another issue would be current. If their current requirements are higher
> than the existing bulbs, you might have to worry about wiring issues.
This
> is an issue with `63 Corvettes. They were designed for one bulb, the `64
up
> for the 1157 which is brighter but with more current. So there is a
warning
> to not use them in the taillights of `63s. I don`t know anyone who has
ever
> had a problem, however, there was a concern by Chevrolet years ago.
LED`s use far LESS current, I`ve used them in `idiot lights` and they
work real well. Only problem is you have to either get a `white light`
LED or match the color of the LED to the filter on the indicator.
Taking the dash out is a pain, so if I can replace the bulb, with
something that doesn`t burn out .... all the better.
They do make `diffuesed` LED`s that aren`t as directional
http://superbrightleds.com/mini-wedge.html
again my concern is `brightness`. the halogens that are
stock will be hard to beat.
From: "labtech_one" <labtech_one(at)yahoo.com>
Subject: Re: dash lights
Date: Tue, 14 Aug 2007 18:20:06 -0400
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Bytes: 2111
________________________________________________
"Tom in Missouri" <toomuch(at)spam.com> wrote in message
news:13c3evcitqhibf0(at)corp.supernews.com...
> Since I haven`t seen them, I can`t truly comment. However, most LEDs I
have
> seen are more directional in how they shine their light. The light in a
> dash is more about spreading around to cover the instruments. As long as
> the light gets directed over the instruments, I guess that would work.
>
> Another issue would be current. If their current requirements are higher
> than the existing bulbs, you might have to worry about wiring issues.
This
> is an issue with `63 Corvettes. They were designed for one bulb, the `64
up
> for the 1157 which is brighter but with more current. So there is a
warning
> to not use them in the taillights of `63s. I don`t know anyone who has
ever
> had a problem, however, there was a concern by Chevrolet years ago.
LED`s use far LESS current, I`ve used them in `idiot lights` and they
work real well. Only problem is you have to either get a `white light`
LED or match the color of the LED to the filter on the indicator.
Taking the dash out is a pain, so if I can replace the bulb, with
something that doesn`t burn out .... all the better.
They do make `diffuesed` LED`s that aren`t as directional
http://superbrightleds.com/mini-wedge.html
again my concern is `brightness`. the halogens that are
stock will be hard to beat.
From: PJ <pj5491(at)yahoo.com>
Subject: Re: dash lights
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Date: Wed, 15 Aug 2007 06:20:17 -0700
NNTP-Posting-Host: 72.199.70.210
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labtech_one wrote:
> "Tom in Missouri" <toomuch(at)spam.com> wrote in message
> news:13c3evcitqhibf0(at)corp.supernews.com...
>> Since I haven`t seen them, I can`t truly comment. However, most LEDs I
> have
>> seen are more directional in how they shine their light. The light in a
>> dash is more about spreading around to cover the instruments. As long as
>> the light gets directed over the instruments, I guess that would work.
>>
>> Another issue would be current. If their current requirements are higher
>> than the existing bulbs, you might have to worry about wiring issues.
> This
>> is an issue with `63 Corvettes. They were designed for one bulb, the `64
> up
>> for the 1157 which is brighter but with more current. So there is a
> warning
>> to not use them in the taillights of `63s. I don`t know anyone who has
> ever
>> had a problem, however, there was a concern by Chevrolet years ago.
>
>
> LED`s use far LESS current, I`ve used them in `idiot lights` and they
> work real well. Only problem is you have to either get a `white light`
> LED or match the color of the LED to the filter on the indicator.
>
> Taking the dash out is a pain, so if I can replace the bulb, with
> something that doesn`t burn out .... all the better.
>
> They do make `diffuesed` LED`s that aren`t as directional
>
> http://superbrightleds.com/mini-wedge.html
>
> again my concern is `brightness`. the halogens that are
> stock will be hard to beat.
>
>
>
I toss in with LT-one on this. While the
LEDs run cooler (less long term damage to the
circuit boards & sockets) they don`t play
well when dimming is needed.
The incandescents & halogens dim by varying
the voltage -- most successful dimming
schemes for LEDs use a square wave and vary
the duty cycle. For now, the dimming modules
for LEDs are really bulky (gadgets that fit
in the base of a table lamp etc.)
Electronics tend to shrink with time -- try
again in a couple of years.
--
pj
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