INTRODUCTION: Tritium (T2 ou 3H2) produced in the laboratory in the form of gas encapsulated with phosphorescent material produces a continuous glow of low intensity, which can shine for more than ten years without exposure to light having as characteristics to be weatherproof, no wires required, to be maintenance-free, to do not consume electricity and it can be obtained in assortment of colors. Tritium is used in military applications (e.g. flashlights, lensatic compass) also has commercial applications (eg. watches, safety signs). Continuous exposures to tritium do not lead to harm or danger who uses this type of lighting device, neither members of the community. Hearing aids that use tritium can help users to find their aids in the dark, also to correlate aids with left or right ear, make it more fun to use aids, and help companies in the promotion of new products. OBJECTIVE: Introducing the first hearing aids glowed by tritium. MATERIALS AND METHODS: Tritium vials were acquired in several colors and attached to BTE hearing aids to be showed to invited observers. RESULTS: Invited observers registered as good lighting source of hearing aids with tritium, fine for the purposes of location in the dark, without, however, illuminating to excess. CONCLUSION: Tritium can be used to glow hearing aids in the dark, without damaging hearing aid functioning or health hazards issues. KEYWORDS: Tritium, Hearing Aids, Visible Light.