Re: lights relays

["Lebens, Rick J" <M245884@flt-test-02.mdc.com>]

> 
> Use a solid state relay. They are commonly available at electronics supply
> houses (not Radio Shack). At least some of these (fairly) inexpensive and
> (very) reliable devices are zero-voltage switching; meaning that when the
> thing turns 'ON' the voltage at its output is zero, then quickly ramps up
> to its input voltage. No voltage means no current and no attendant current
> 'inrush'.
> 
Zero voltage switching refers to turning on when the polarity changes 
and goes through zero volts on an AC wavevform.  Hopefully this does 
not apply to your autos power system. 

There are solid state relays made with a milli second rise time to 
control electro magnetic interference.  Would this slower turn on warm up your 
cold filament?