Titanium Bead with Tritium Vial + Tritium Lanterns - Make your gear visible in the dark!

Just another cool item I found on AliExpress - a TC4 titanium milled bead, that has a tritium vial inside, making it visible in a complete darkness.

Tritium is unique as a light source, because it doesn't accumulate light (like other luminophore, that stores light and then emits it for a limited period of time, this can be found on a lot of watches), but is itself the source of light, that emits light all the time and can last up to 25 years.

Check it out here: https://goo.gl/q25sRs

Titanium tritium lantern can be bought here: https://goo.gl/Yuys81 
Budget plastic tritium lantern here: https://goo.gl/5LjR36

Specifications:

Material: Titanium TC4, Tritium

Type: Tritium Lanyard Bead

Waterproof: Yes

Weight: 3g 

Color: Green, Blue, Yellow, Orange, Purple, White

Brightness Order: Green→Blue→Yellow→Orange→Purple→White.(Green is brightest)

Bead Size: Height: 16mm; Outer Diameter: 10mm; Inner Diameter: 5mm

Tritium Tube Size: 6*1.5mm