Series FB is a self contained emergency lighting unit with that provides 90 minutes of LED illumination in the event of a power failure. Included is a maintenance free rechargeable NiCad battery. Housing is constructed of rugged die-cast aluminum that is finished with a durable powder coat finish. Available options include self diagnostic (SDT) and cold weather feature (CW). Input voltage is 120/277 VAC 60 Hz. Complete specifications can be downloaded in PDF format. This product is part of the PATHWAY Emergency product family. Imported product.