High brightness:Emergency Lights for business with 360° rotation adjustable Twin Heads ,High Illumination (300lm)when Power Outage Long Duration Time:The Working time of Emergency lights for Business is more than 4 hours emergency duration time. Wide Input Voltage AC 85- 277V (50/60Hz) Multifunction & Safety : Power failure light when power failure or unconnection,can turn on or turn off the emergency lamp,2 years for battery Easy to Install:The Commercial Emergency Light Fixtures easy to charge and install ,fits all requirments and building standard for the various installation. The emergency LED light with standard accessories and installation instructions inside Wide Applications:LED Emergency Lighting when power failure, suitable for school, hotel, shop, supermarkets, restaurants, library, home, factories,building, etc led emergency lights for business Product Size :12.2x4.21x3.54inch Power:2*12pcs 2*2W 300lm Emergency Duration Time: more than 4 Hours Charging Time: at least 24Hours Material: ABS Plastic Fire Resistant