ITEM NAME:1Pc 1.5X6Mm Tritium Gas Tube Self Luminous 15 Years Of High-Tech Products E O4E1 1Pc 1.5X6Mm Tritium Gas Tube Self Luminous 15 Years Of High-Tech Products E O4E1 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. Type:?Pocket, Multi Tools Application:?EDC Outdoor Camping Survival Equipment Tourism Portable Tool Tritium gas Luminous color:Green Size: 1.5*6MM colour:white Material:Extra hard glass Package Contents: 1 * Self-illuminating manifold