Here in 110VAC USA we don't seem to have the problems you are having in
220VACland.  Vehicle bulbs are even lower voltage, which may explain fewer
blown bulbs.

An identical bulb designed for a lower voltage will have a shorted thicker
filament, which gives it more mechanical strength.

Doug Butler
Sherpa Engineering


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Jinx
> Sent: Tuesday, June 11, 2002 8:39 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE] Phase control dimming on a cheap pic
>
>
> > How about this for a whacko idea, rectify lighting
> > circuit to DC in the switchboard, then use a PIC
>
> I'll reply to this later but here's something I just thought of -
>
> Probably the most common users of high wattage DC
> bulbs would be vehicles. Are there any comparable stats
> for car lights blowing in same way that we seem to
> have experience for mains bulbs ? As I ride around it
> appears to me that almost all cars have a full set of lights
> yet I know plenty of people that are forever changing
> house bulbs
>
> Don't know if that's just a "so what ?" question. So what
> if it is ? ;-)
>
> --
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>

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