The RUN BISON LED Emergency Light is is the perfect solution for those on the lookout for a compact, energy-saving emergency light. The 2-head LED emergency light is used the High-quality LEDs and battery backup make this unit virtually maintenance free. Never replace the bulbs during the entire lifespan of the unit. With a universal back plate for quick hook-up, dual primary 120 or 277-VAC operation, and UL Listing for damp locations. The Emergency lights are connected to electrical grid, the grid powers a battery inside the light and keeping it always charged. Once a power issue occurs in the building, the emergency lights will activate. Color: White. Material: Acrylonitrile Butadiene Styrene (ABS).