Codes may don’t favor every emergency exit sign, but installation & design demands occasionally do!!! Photoluminescent exit signs are tested and listed to the same standards as tritium exit signs. But following are some of the less-noticeable factors that can help installers and building owners to make informed choices: Lower lifetime costs. Minimal maintenance requirements. Keep signs in compliance with local laws. In the upcoming sections of the post, we dig deep into these photoluminescent exit signs issues. But for busy readers, here’s is a summary: All exit signs, including photoluminescent or non-photoluminescent, meet the same strict standards. Precisely, no sign type is worse than another. Photoluminescent exit signs can be easily installed, moved, and disposed of. But it’s not the same for tritium or electric signs. Many local authorities don’t ask for letters and symbols si...