Andy
I don't think heat is the major concern. 2.47 volt bulbs will have a 
VERY short life in a 12 volt circuit.
Bill  '70 6
Andrew Packard wrote:
>I got bored actually driving my car all the time, so I dove in and took
>apart the dash.  While I have all the instruments out, I thought I would
>replace the bulbs.  I bought some #14 bulbs from RadioShack, 2.47 volts,
>0.3A.  I tested the new bulbs vs the old ones and the new ones are about 10
>times brighter.  On all the bulbs I removed, it is stamped "OSRAM12V2.2W
>ENG".  On the RadioShack bulbs, it is stamped "14 2.47V 0.3A".  I tested the
>bulbs with a 12V cordless drill battery.  I like the brightness, but I'm
>afraid of the heat.  I obviously have higher wattage bulbs than I should.
>Can anyone tell me which RS bulbs to buy?  I know it's been stated once
>before as this topic surfaces every six months or so.
>
>Andy 
>
>CD6746L TO
 
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