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Subject:Re: Sanity Check - Wire gauge for wiring SA headlights
From:David Beierl
Date:Fri, 4 Oct 2002 21:10:06 -0400

At 08:22 PM 10/4/2002, Brent Christensen wrote:
>Maybe this is a bigger reason to use 10 awg wire to the brights and low
>beams than the actual rating of the wire...?

No maybe about it...lights are very voltage-sensitive.

A rough rule of thumb for 110vac incandescent bulbs near their operating
point is that visible light output goes up with the *fourth power* of the
voltage input.  Unfortunately, life goes down with the *fifteenth power* of
the voltage, gulp.  That's why photoflood bulbs have a working life of one
hour...

So beef up the wires, expect noticeably more light and noticeably less life
from the bulb.

david

--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"