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I just don't get this drop...gonna have to google this one...
What’s to get? It’s a small fob that you can attach to your keys, that will take either three or six tritium vials, small glass tubes that glow in the dark without needing to be exposed to any light source, enabling you to easily find your keys in the dark. I’ve seen comments about these fobs being sold with the vials, but that is hopelessly complicated, there are, I believe, six different colours, in two different lengths to fit, so an enormous number of options. Far easier to buy them separately, either all in one go, or one at a time to spread the cost. I’ve got one, had two from the last drop, but one was stolen from my keys when I misplaced them, so I’m getting a couple more.
They are very bright, and make finding my keys on dark mornings dead easy without needing to turn main lights on.
How long does each rod last? I would assume they eventually dim then stop glowing all together.
The half-life of tritium is about 12 years. I had a tritium compass. It stopped glowing after about 15 years or so.
Thanks for the explanation.....