[Diy_efi] 12V vs 42V

[Mike]

by the time 42v systems are in production, we'll
probably have led lamps of a wide colour range and
low cost - which would be heaps more reliable.

Having bright red led rear stop lamps seems safer than
filament ones, they come on quicker with a 'snappier'
look giving a greater sense of urgency than the filament
equivalents...

rgds

mike


At 06:28 PM 13/1/2003 -0600, you wrote:
>I believe the filaments for bulbs get too fragile for a car, 
>when made very long and skinny for higher voltages.  Just 
>bump a 120 volt bulb when powered and its open circuit.  
>
>Certainly the safety issue puts a lid on voltage, just as it 
>has in the phone business for over a century.
>
>Bruce Roe
>
>13 Jan 2003 Bernd Felsche <bernie at innovative.iinet.net.au> writes:
>> On Mon, Jan 13, 2003 at 01:17:32PM +0000, Mike wrote:
>
>> > Things get more interesting with the higher voltage,
>> 
>> The reason for the "about 40V" choice is that the current 
>> crop of automotive electricians won't require re-licencing. 
>> At least not in the USA and EU. They're allowed to fry 
>> ECU's and blow airbags rated to about 40V.
>
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