ExitGlo™ currently carries a full line of UL924 listed photoluminescent exit signs rated for three maximum viewing distances 50, 75 & 100 feet. In most cases our 50 foot sign will suit your requirements, but for those situations that require something stronger check out our 75 and 100 foot rated signs. These exit signs use no electricity, are easy to install and are virtually maintenance free. Every sign we manufacture is made in the USA and carries a 20 year warranty against manufacturer defects.