Westgate XTSL-GW Super Slim LED Exit Sign Green Letters White FinishWestgate XTSL GW XTSL GW Product Description Exit signs shall be provided at every exit door, at the intersection of corridors, at exit stairways or ramps and such other locations and intervals as are necessary to provide the occupants with knowledge of the various means of egress available Features: Ultra Thin Exit Sign 5 Year Warranty Maximum 24 hours for Full Recharge Time Built in 1. 2V 1000mAh Ni MH Battery for Minimum 90 Minutes Emergency