Date: Thu, 22 Dec 2005 18:21:01 -0600
Reply-To: John Rodgers <inua@CHARTER.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: John Rodgers <inua@CHARTER.NET>
Subject: Re: Upgrading Projectzwo Bulbs to 100w and/or Yellow
In-Reply-To: <p06230914bfd0b81e8480@[192.168.1.3]>
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If it is not increased current flow, then what is causing the increase
in heat?? Perhaps it is not an increase in heat as much as a restriction
to the flow of heat eneergy away from the bulb. Perhaps it is not
excess current, but inadequate removal of the heat that the engineered
circuit puts out. As installed, it works great. But tamper with the way
the heat is carried away, restrict that in any way, and you have a
recipe for burnout.
But you are right. Increased resistance is what causes the amperage to
rise - or "increased current flow!"
Best example I know........... I had a kiln for pottery and used a long
cable from the killn to 60 amps of power. The cable was #8. It worked
fine as it lay out in the sun of winter. But come summer and 100 degrees
of heat, and the circuit breaker started tripping several times during a
firing. Turned out that the heat of the sun was raising the temperature
of the wire, and increased the resistance. This required more current.
Current produces heat, and as the breaker reached it's temperature set
point breaker would trip. I changed to a larger diameter wire - a #6,
and the problem was cured.
John Rodgers
88 GL Driver
DaveC wrote:
>There is no such thing as a bulb getting "too much current". The current flows as a function of the resistance of the bulb filament's resistance: whatever current the bulb requires will flow through the wires and relays (provided these can handle the current).
>
>Vibration, improper handling during installation (failure to remove moisture from the skin prior to installation of the bulb), poor bulb bad design can lead to premature failure.
>
>Dave
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>>Light bulbs can prematurely burn out from a variety of reasons. Too
>>much current. Too much heat. Too much vibration. I'd suggest that the
>>design of the Projektzwo's means it is likely heat dissipation is the
>>problem for the larger wattage bulb...
>>
>>On my own lights, I was a little disappointed with the wire gauge used.
>>However, that's easily corrected since standard connectors are used.
>>Remove the 18(?) gauge and replace with some 14 gauge.
>>
>>
>>On Dec 22, 2005, at 12:03 PM, Bruce Nadig wrote:
>>
>>
>>
>>>Chris,
>>>
>>>Good questions.
>>>
>>>I have the ProjektZwo fogs on my '87 GL.
>>>
>>>All of my wiring is 10 gauge with individual relays for each side (not
>>>one
>>>relay for the whole circuit) and in-line fuses. Make sure your wiring
>>>is up
>>>to snuff.
>>>
>>>I am currently running 100w bulbs in my ProjektZwo fog lights. The
>>>results
>>>are amazing. Very low flat beam of light spread far to both the left
>>>and
>>>right. Low enough to stay out of eyes.
>>>
>>>One problem I have had at 100w is that bulbs tend to burn out
>>>semi-frequently. I have found changing the bulbs to be just a bit of a
>>>pain
>>>in the ass, but worth it for the extra light.
>>>
>>>No answer on yellow bulbs.
>>>
>>>As for protective covers for the lenses, I have hesitated on that one.
>>>Especially with high wattage bulbs, I worry about the heat they
>>>create. I
>>>worry that if I put some sort of protective film on the lenses then
>>>then
>>>won't be able to shed hear efficiency and they may crack. I base this
>>>on no
>>>scientific evidence or anecdotal evidence. It is simply an irrational
>>>fear
>>>that I have. O.K., make fun of me.
>>>
>>>Good luck!
>>>
>>>A Safe & Happy Holiday Season To You & Your Family,
>>>Bruce
>>>motorbruce@hotail.com
>>>
>>>
>>>
>>>>From: Christopher Gronski <gronski@GMAIL.COM>
>>>>Reply-To: Christopher Gronski <gronski@GMAIL.COM>
>>>>To: vanagon@GERRY.VANAGON.COM
>>>>Subject: Upgrading Projectzwo Bulbs to 100w and/or Yellow
>>>>Date: Thu, 22 Dec 2005 07:41:08 -0500
>>>>
>>>>Has anyone upgraded the bulbs in their Projectzwo fog lights? I
>>>>understand the existing bulbs are EIKO 01005 H2 12V 55W. I would like
>>>>to go brighter and/or yellow for fog.
>>>>
>>>>My plan is this: Wire the Projectzwo fog lights to the second lamp
>>>>position (the driving lights position) so that they come on sans
>>>>headlights for use in fog. My question is:
>>>>
>>>>1) Is upgrading from 55w to 100w working across purposes if the intent
>>>>is a fog light (ie: brighter is not better)?
>>>>
>>>>2) Does anyone know of an yellow H2 bulb? I've seen these in other
>>>>sizes but not H2?
>>>>
>>>>3) Has anyone seen a protective lens covering (like the 3M stuff) in
>>>>yellow that would also tint the light?
>>>>
>>>>Any help is appreciated...
>>>>Chris
>>>>
>>>>
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