The EXP-EMG-EXT-12W-1LX explosion proof emergency exit sign features an LED powered exit sign and high performance Nickel-Cadmium battery pack to provide operators with a failsafe lighting solution suited for hazardous locations where maximum safety and compliance with exit marking standards is required. This emergency backup power equipped exit sign is designed to act as a standard exit indicator in hazardous locations under normal operating conditions, but if power is interrupted, the unit automatically switches to an internal battery backup system which provides continued operation for up to 90 minutes. The LED light has a 50,000 hour operational life and produces more light than a comparable 100 watt incandescent bulb while using a tenth as much current.
Larson Electronics, www.larsonelectronics.com