The CIATA indoor LED emergency exit sign LED adjustable light pipe combo in white housing with its ultra-bright and energy-efficient white LED emergency lighting feature is a perfect choice as a LED exit sign to any indoor space. Featuring a long-life Ni-Cd (Nickel Cadmium) rechargeable battery that is energy efficient and pro-rated for 5-years, the CIATA LED exit sign contains a fully automatic solid-state 2-rate charger that takes a maximum of 24-hours to get fully recharged. In a power failure state, the Internal solid-state transfer switch automatically connects the internal battery to LED board/light pipe for a minimum of 90-minute emergency illumination. The exit/emergency light combo is tested for durability and suitable for indoor/damp location use (0°-50°C/32°-122°F standard). The LED emergency exit sign features a 120-277-volt AC dual voltage operation and also has a charge rate/power "on" LED indicator light and push-to-test switch for mandated code compliance testing. The exit sign is a perfect choice for supermarkets, hallways, hotels, hospitals, offices, schools, restaurants, bars, apartments, office buildings, theatres, corridors, retail spaces, shopping malls, warehouses, etc. Material: Polycarbonate.