Knightsbridge: EMLSUSL, LED Double-Sided Emergency Exit Sign, Adjustable Drop, Arrow Up Legend, 3 Hour Illumination, Polycarbonate, 230V, 2WLED double sided suspended emergency exit sign with adjustment drop. Complete with Arrow Up legend. Typically installed above doorways, fitting can be maintained or non maintained use. Operating a minimal 3 hour illumination during loss of power, ensuring illuminated exit routes during evacuations. Height drop adjustable (maximum drop including legend 800mm) 3 hour emergency Maintained or non maintained use (cannot be wired for switched maintained