Mini Tritium Glowing Keychain Glows For Ten Years
Tritium is the radioactive material used in compasses, gun sights, watches, and other items you might need to use at night. Unlike LED’s, tritum doesn’t need a power source. In fact, it will glow for years and years, without a power source. This keychain will glow for at least 10 years.
“They’re available from DealExtreme for just $9.80 and come in either a white glow or green glow version. And while the material is radioactive, it’s safe to use in consumer products since the beta particles it emits are too weak to even penetrate human skin. (Though at one point we thought radium was safe to use too.)”
