American PERMALIGHT®’s 2005 catalog highlights the new 150/22 power photoluminescent product line. Exceeding ASTM requirements, these glowing markings are charged by ambient lighting and emit a bright yellowish luminance in full darkness for more than 35 hours. Available in stair brackets, floor inserts, ISO safety signs, EXIT signs, low-location wall markings, and more.American PERMALIGHT, Inc., Torrance, CA.