Battery Backup
Products with battery backup contain a battery so in the case of a power outage the lights or signs with stay illuminated for roughly 90 minutes.
Damp Location
These items can be placed where they may be splashed with water. Typically they are safe to be used outdoors.
Industrial
Emergency Lite Service Center has a comprehensive line of industrial exit signs, emergency lights, batteries and accessories.
Vandal Resistant
Products that are designed to be installed in a location (or devices) where they may be subject to vandalism.
Black
Most product that have black housing color are made of a thermoplastic material.