Re: Amps drawn

[Alan Cordeiro <cordeiro@avlna.com>]

>   more volts at the light, which reduces the current.  The higher voltage=20
>
>***WRONG***
>
>Current is directly proportional to voltage (if voltage goes up 10%, then
>the current flow will go up 10%), and the power dissipated goes up as the
>square of the voltage (or the current) change accordingly.

With incandescent lamps, that is not strictly true. The resistance of
the filament increases with temperature, and ( off the cuff..) a 10%
increase in voltage will only use a 5% increase in current, but give a 
whopping 22% increase in light output for which you will pay for by
a reduction in lamp life of nearly 40%. WELL WORTH IT.

I had posted actual numbers over a year ago, directly from the Sylvania
manufacturers data book, had outputs of 9004s 9007s etc. The file
is gone, sorry, ( may still be at my previous employer...)


>sing the stock ignition-switch-switched headlight power), running the
>rest of the way through the stock wiring harness through the fuse
>panel (again...) to the front low beams, I gained over 2 volts at the
>headlights! (Went from 9.7V to 11.9V).
>                                                         RDH


ON a 5ktq '86, I gained about 1 to 1.2 volts, memory is fuzzy here


Alan Cordeiro