... :1, Wall and ceiling mounted2, Input voltage:AC 220V ( ±10% )3, Power:8W (LED )4, Emergency Time≥1.5H5, Emergency Conversion ... , Shell: Alnico7, Installing Type: Hauging /Appending8, Nick Cadmium ( hydrogen ) battery:3.6v 1.5H9, Working temperature:-10--55oC10, Working humidity:10%-90 ...