On Aug 9, 5:40 pm, "Hilton" wrote:
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

Everything that goes into a mine has to pass the explosion proof test
requirements. LEDs can pass, but it has to be in a tested design.
That adds cost...

Dean