-40%
Tritium Beta Lamp Sealed Glass Tube Dia.5﹡100mm Luminescence 20 Years Above
$ 136.28
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Description
Tritium Beta Lamp Sealed Glass Tube Dia.5﹡100mm Luminescence 20 Years AboveTritium has a half-life of 12.3 years, that is, after 12.3 years, its brightness is half that of today's. After 24.6 years, its brightness is a quarter of that of today's. Although it darkens, it always glows.
The decay product of tritium is He-3, which is rare even if the tritium tube no longer emits light decades later.