William Graham wrote:

"pjp" wrote in message
...

I know every time I've used a set of my Lithiums to power up a flashlight,
the bulb doesn't last very long (e.g. minutes at most). Therefore I'd be
cautious of using them in anything that says not to.


If the voltage is correct for the bulb, the battery type can't hurt it. I
suggest you look up Ohm's law, and take a few minutes to learn some basic
electrical theory.....Believe me, it should only take an hour or less, and
the information will be invaluable to you, regardless of what you choose for
your profession.......


WRONG!
Lithium batteries are capable of delivering very high currents. If a
flashlight is designed for carbon/zinc or alkaline batteries, the
designers are probably counting on the internal resistance of the
batteries to limit the current through the bulb. Lithiums could easily
burn out the bulb. But, it's your flashlight, try it out. Then tell us
how it affects bulb life.