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Re: Headlight Brightener

> They also sell a regulated power supply for amplifiers etc, that will always
> provide a given voltage at the terminals, i.e. 13.5 volts, regardless of
> battery voltage (in a given range). Thus 11.1 volts at the battery? 13.5
> volts after the regulated power supply.
> This would be nice to have on the heavy draw headlamps. Remember the
> equation for amperage draw? Total wattage divided by voltage equals amps
> drawn. Thus a setup such as this would not only yield brighter bulbs in a
> given application (while also factoring out voltage fluctuations while the
> lights are on, radiator fans, wipers, etc.) but would also lower the amps
> drawn.

Due to the losses in the power supply it would actually use more
current.  TANSTAAFL

oh and the wattage is not a constant, the voltage available and the
filament resistance are the independent variables here, current and
hence wattage dependent on them...

Huw Powell


"This is the place where death rejoices to teach those who live."

Usually it is written in Latin.