Where can tritium light sources be acquired?

Tritium lighting is made using glass tubes with a phosphor layer in them and tritium (a hydrogen isotope) gas inside the tube. Such a tube is known as a "gaseous tritium light source" (GTLS).

Because tritium in particular is an integral part of thermonuclear devices (though in quantities several thousand times larger than that in a keychain), devices containing tritium are considered dual-use technology in the U.S.A., and are therefore illegal for export. However, they are widely available in the U.K., most of Europe (some countries like Belgium have outlawed them however), Asia and Australia.

Tritium devices can be purchased in the UK and Australia, but are illegal for import to the United States, however they are available in the US as gunsights and for military applications.

UK Source
http://www.crazyaboutgadgets.com/detail.asp?ID=371

AU Source
http://www.kitbag.com.au/prod849.htm

USA Source (Military Personnel only)
http://www.ameriglo.net/tactical_dev.htm

You can also find tritium lighting in the US without having to be military personnel at http://www.unitednuclear.com. They have a limited stock, though.

First answer by Jbiggs12. Last edit by Jbiggs12. Contributor trust: 1 [recommend contributor]. Question popularity: 10 [recommend question]