Photoluminescent exit signs are used in darkness to guide people and reduce risk in case of an emergency or power failure. They use photoluminescent materials to absorb and store ambient or natural light, which is used during blackouts. Unlike traditional emergency signs, you can't turn on or turn off photoluminescent exit signs. A photoluminescent sign's performance depends on factors such as pigment concentration, light intensity, charging periods, and light charging type.
26 January 2023
