This high-performance product line exceeds the American Society for Testing and Materials (ASTM) standards for photoluminescent safety markings. The ASTM code requires the product to emit luminance values of 20 millicandela per meter (mcd/m) after 10 minutes in the dark, and 2.8 mcd/m after 60 minutes. Permalight reports that Power 150/22 emits 150 mcd/m after 10 minutes and 20 mcd/m after 60 minutes. Products include aluminum-backed stair brackets, stair nosing, anti-slide floor inserts, ISO-safety signs, exit signs, and low-location wall markings.