I just went to the dealer and got the replacements - keep in mind that mine just burned out for the first time on a 1987 van.  I would hope your lights will still be working on your Prius for some time to come.  

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Stan Wilder
Sent: Monday, August 23, 2004 10:28 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: license plate light bulbs

The bulb numbers are in your owners  manual and often they can be read from
the bulb base itself.

Stan Wilder
www.engineceramics.com
----- Original Message -----
From: "Joy Hecht" <jhecht@ALUM.MIT.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, August 23, 2004 10:41 AM
Subject: license plate light bulbs

> I also need to replace a burnt out bulb on one of the license plate
lights.
> Went to the local car parts place, got a bulb that fits, but it is much
> dimmer than the old bulb.  The old one is all cruddy and we couldn't read
> all the part numbers on it.
>
> Does anyone know what bulb it calls for?
>
> I'm about ready to get rid of even more stuff and continue my travels in
my
> Prius, which never needs repairs and if I needed parts I could get them.
>
>
> Joy
>
> ****************************************************************
> Joy Hecht
> and Matilda, 1989 Burgundy Vanagon
>
> For musings about life and the vanadventures:
> http://users.rcn.com/jhecht/gypsy
>
> ****************************************************************