[alfa] Re: alfa-digest V10 #156

[Joe Elliott <jee@xxxxxxxxxxxxxx>]

> > First, nit-picky headlight factoid: HID lights actually draw less 
> > current than incandescent bulbs, if I'm not mistaken.
> True but the switch-on surge is very high. That's why it arcs 
> switches and destroys them. Once the bulb is lit, they actually do 
> draw a bit less current than the same rated QB.
I'd have thought that the ballasts included with the retrofit kits 
utilized a capacitor or something to supply the necessary switch-on 
current and retain compatibility with existing wiring and switch. 
But I guess you're right, because the Sylvania kits include a relay, 
which would only be necessary if the switch-on surge isn't handled 
entirely by the ballast.

-Joe
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