Tritium or photoluminescent
Choose tritium when charging light is not dependable. Choose photoluminescent when the sign face can receive the required ambient light.
Spec guide
Choose the no-power technology first, then verify visibility, mounting, environment, and project acceptance before selecting a model.
Choose tritium when charging light is not dependable. Choose photoluminescent when the sign face can receive the required ambient light.
Match the sign's viewing-distance rating, legend color, face count, arrow direction, and sightlines to the actual egress path.
Confirm wall, ceiling, end, surface, or specialty mounting and verify the housing fits the substrate and doorway condition.
Use a product listed for wet, damp, exterior, washdown, cold, or other specialty conditions when the project exposure requires it.
Confirm product listing, charging or service-life documentation, installation, project documents, and local AHJ acceptance.
Non-electrical exit-sign acceptance depends on the technology, product listing, charging or service-life conditions, installation, project documents, and local AHJ approval.
Quick answers
Expand the questions that match your application, fixture-selection, or compliance review.
They are exit signs that do not rely on building wiring during normal operation. The main paths are tritium self-luminous signs and photoluminescent signs that charge from ambient light.
Tritium signs provide self-luminous operation without charging light, while photoluminescent signs store ambient light and require dependable charging conditions.
They can, when the selected technology is suitable for the project and properly installed. Confirm visibility, listing, service-life or charging requirements, and local acceptance.
Use a standard LED battery-backup sign when the project calls for wired operation, automatic charging, standard testing, or a conventional commercial exit-sign path.