5-YEAR WARRANTY-Indoor exit signs battery 5 yeas warranty for the electrical parts and housing.Double faces Wall, ceiling and end mountable; Input Voltage:120/277VAC. US STANDARD LISTED-Red exit emergency lighting with battery Backup to UL-certified with a UL-94-5VA flame rating plus overcharge and over-discharge protection. PROFESSIONAL EXIT SIGN LED LIGHTING-Exitlux Red exit sign Long-lasting SMD LED light; Charging time 24 hours, discharge time 90 minutes.Nickel cadmium battery provides 90 minute backup power in the event of a power outage; 1.2V 1000mAh . APPLICATION ENVIRONMENT-Led red exit signs Operates in damp, but not wet, and dry conditions; operating temperature 0-40 degrees Celsius. ABOUT EXITLUX-Exitlux of Red LED emergency exit signs with 2 adjustable heads in fire retardant, injection-molded, thermoplastic ABS housing. EXITLUX was established in 1993, it's been 3 years online sale. Sells 30 million electrical products every year.EXITLUX's emergency lights are UL certified and FCC compliant. We promise a 5-year warranty on electrical components and enclosures, and a 2-year warranty on batteries.It's made with thermoplastic housing and is 5VA flame retardant high impact resistant. Adapt to temperature 0°-40°.it's can be used for 90 minutes in an emergency. Protect your life and property completely.The voltage is wiring 120VAC & red 277VAC.There are accessory bag and installation instructions.The light is suitable for wall mounted applications.