The supply for highly visible glow in the dark messages. It’s perfect for low-light areas and emergency situations like power outages. The material absorbs light quickly to glow for up to eight hours in the dark. Use it to mark emergency exits, doorways, evacuation routes, and any other egress marking. Compliant: material meets eight standards for luminescence for UL, ASTM, ISO, and more. Permanent acrylic adhesive: durable adhesive offers a strong grip to a variety of surfaces to meet requirements for emergency egress. Durable: supply stays intact in a range of temperatures and exposures. Glow properties: tape glows for 8 hours when fully charged.