Bryan wrote:


Hobby shops are good places to shop for grain of wheat lamps (typically
available in 6V and 12V types). Two issues with using 12V lamps:
a) your AC power supply or automotive charging system supplies 13.8V but the
lamp is rated for only 12V... running current will be high (lifetime will be

Mouser has a pretty good assortment, and unlike the hobby shop, you can find
the actual specs for voltage, CP, and hours life.

-Chuck