The Vevor 12-pack emergency lights are designed to provide dependable backup illumination for commercial and residential spaces during power outages. They support AC 120-277V input and automatically switch to battery power, delivering at least 90 minutes of emergency runtime. Each fixture uses dual adjustable light heads with bright, glare-free LED output to help keep exits, hallways, and stairwells visible. Flame-retardant PC housing and an ABS lens add durability for demanding environments. These hardwired fixtures are well suited for offices, restaurants, schools, stores, basements, and public corridors.