Copper + Acrylic Tritium Vials Keychain Self-luminous 15-Years 5x80mm

Specification: Product name: Tritium Vials Keychain 5x80mm Material:Copper + Acrylic and Tritium Tritium Size:5x80mm (diameter x length) Keychain Size:9x90mm (diameter x length) Weight:10g Tritium Color:Green Waterproof: up to 100m Compact and lightweight,can be used as decorations With the key ring,can be easily linked to other objects,the phone,handbags,flashlights,or hanging on the wall. Features: Tritium gas self luminous for 15 years, no batteries, no light storage. Compared with other similar fluorescent products, the biggest advantage is, forever, can be in the water 100 meters, can be used in harsh environment. Because the beta decay of tritium will only emit electronic high-speed mobile, do not penetrate the human body, there is no harm to human body. The half-life is 12.3 years, electrons produce beta decay of tritium is very weak, a piece of paper can be blocked, so the tritium gas in the lamp is closed extremely safe, even if the glass tube rupture, the release of tritium gas, and the use of people to complete inhalation, but also far less than people in the normal life of the day is the amount of radiation. Tritium gas emission technology has been applied in many civil fields. Package included: 1 x Tritium Vials Keychain 5x80mm