LED Emergency Exit Sign with Self-Check Function & 3-Hour Backup Emergency Lighting. Designed for both indoor and outdoor applications, this exit signage light integrates a reliable Ni-CD battery and energy-efficient LED light source. Featuring a 4000K color temperature, 80 Ra color rendering index, and aluminum + acrylic construction, it ensures high visibility and durability. Ideal for emergency lighting in commercial and industrial settings, it supports AC 85-265V input voltage and offers a 3-year warranty.More