It's been done.
http://www.intrinsically-safe-instru...lashlight.html


Ben Jeffrey


"Hilton" wrote in message
...
Hi,

Seems like it is a no-brainer (and easy) for pilots to use LEDs in various
forms. Why then, do miners not use them? Why do those trapped miners
only have a few hours of light available? Heck, the mine companies could
buy al cheapo LEDs for nothing and spread them throughout the mine for
little to no cost. These are give away items now. One single tiny little
LED would be invaluable right about now and last forever.

Some things just don't make sense.

Hilton