Designed to help inform people of the location of the fire alarms within your premises.Choice of high intensity flexible vinyl or 1.3mm rigid material options.P.S.P.A. Class B material.Teste to DIN 67510 Part 1 - 4 for aterglow performance whcich exceeds international standard for flammability, smoke and toxicity.Once fully charged, sign will glow for over 10 hoursVisible even in complete darkness.Factory applied self adhesive backing.