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Re: 80/90 headlights, what do you think?
> From: Phil Payne <quk@isham-research.demon.co.uk>
> To: bbell@bbell.com
> Cc: quattro@coimbra.ans.net
> Subject: 80/90 headlights, what do you think?
> Date: Saturday, October 04, 1997 3:28 AM
>
> In message <199710040655.GAA27092@out2.ibm.net> "Bruce Bell" writes:
>
> > Remember doubling the wattage doesn't double the light output, it
generally
> > results in burned connectors and wiring - even with added relays
(BTDT).
>
> Well, it _does_ double the light output - try a good lightmeter - but the
human
> eye doesn't perceive double the brightness. Same as dB in sound. Beware
also
> of scatter - if you put too much stray light on the roadside, your eyes
> compensate and the extra brightness on distant objects is wasted.
Yes, that is what I meant. :-) I was thinking of the inverse distance
squared relationship and I should know by now not to take verbal shortcuts
on this list. Gee, If I'd just used the word "perceived" or
"effective".........
> However - I've not seen any connector or wiring problems with the
auxiliary
> harness in my car. The main downside is that uprated bulbs run hotter
and
> don't last anything _NEAR_ as long as stock bulbs. I changed one bulb in
three
> years before going to the monsters, but now I'm changing each bulb every
four
> months. So the bulbs aren't just twice the price of stock - they're a
dozen or
> more times the price.
Think this is something we're saddled with here in the states. 9004 bulbs
with a plastic connector. I tried the 80/100 watt variety with special
harness and relays and the connectors still burned. what's more even with
my brights on no one was flashing me - no wonder with the scatter. I love
my new Hella H4/H1 and even though I'm still running relays and the harness
the 55w bulbs are most satisfying.