Emergency LED driver for use with new or existing LED luminaires. Driver's circuitry automatically switches the luminaire between emergency and normal power operation during power loss and restoration. Operates at a reduced level for a minimum of 90 minutes to allow safe egress during power outage. Upon restoration to normal AC operation, the emergency driver returns to charging mode. Input Voltage: 120-27VAC Output Voltage: 120VAC (during emergency operation) Wattage: 23W Illumination Time: 90 Minutes Listing: UL 924 & CSA 22.2 No 141-15