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Tritium vials contain tritium gas which provides illumination without power, light or other sources. Tritium vials are ideal for customising torches that have designated tritium slots as well as pens, pendants, watches and more. Each tritium vial is 6mm long and 1.5mm in diameter. Available in green or blue and are sold individually.
Note: Tritium capsules should be handled with care to prevent breakage