Trijicon Tritium

[Cosmoline]

My night sights on my Sig are about 15 years old. I have a noticable decrease in brightness. Is this to be expected?

[MoxyDave]

Yes. The half-life of Tritium is 12.32 years, which means it will lose half its brightness in that time.

Tritium Illumination on Wikipedia (http://en.wikipedia.org/wiki/Tritium_illumination)

[FortTom]

My night sights on my Sig are about 15 years old. I have a noticable decrease in brightness. Is this to be expected?

Yes. It's normal. 15 years is pretty good though.
FT

[Cosmoline]

Thanks Dave and Tom. Guess that means my Luminox watch is half as bright also! :(

[MoxyDave]

No problem. You might try calling Trijicon. I think they will replace the lamps for less than the cost of new sights.

[Cosmoline]

Great advice Tom. Talked to Trijicon today, they said they will replace the lamps for $54. Thanks again.