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May 19, 2018

bookofjoe's Favorite Thing: Glow-in-the-Dark Keychain Light


Tritium: that means it doesn't ever need to be exposed to light to produce its faint, steady glow.

No batteries, not very bright, unnoticeable unless you're in the dark, at which time it emits enough light to enable you to locate your keys.

From the website:



Features and Details:

• Glows continuously for 10 years

• Transparent plastic housing

• Waterproof to 100 meters

• Keychain ring included

• Available in six colors

• 0.8" x 0.2" x 0.2"

• 0.18 oz (5g)



$15.90 (bag pictured above included with orders from southern Atlanta suburbs).

May 19, 2018 at 08:01 AM | Permalink


They last well beyond ten years; that's just the half life. I replaced mine after about ten years, but the old one is still clearly visible in a dark room.

Posted by: Luke | May 20, 2018 9:31:00 AM

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