Emergency relay kit for use with existing low voltage lighting fixtures, already installed in the ceiling- Emergency relay system automatically switches low voltage fixture between emergency and normal power operation during power loss and restoration- The remote location battery unit operates up to four 50W low voltage lamps for a minimum of 90 minutes to allow safe egress during power outage- Upon restoration, the fixture returns to normal AC operation while the emergency battery unit returns to charging mode- Must be powered by NEBU Series remote battery unit or 12V emergency power system-Features- Trouble-free installation on most magnetic low voltage fixtures- Powered by battery unit or 12V external emergency power source- Maintenance Free lead-calcium battery- Integral indicator light and test switch on battery unit and optional emergency lights- Input Voltage 120V or 277V, 60Hz- Lamps Operated 50W MR16, PAR36 or AR111- Battery 6V,12ah or 12V,18ah Sealed Lead-Calcium Battery- 90-minute emergency operation- 24-hour charging time for completely depleted battery SKU: NORA19800