To provide an emergency luminaire which can improve efficiency of maintenance work of the emergency luminaire, and improve safety of an entire facility to be protected from fire.
The power supply device 1 includes a storage battery part 2 which is charged by an external power supply constantly and can be charged and discharged to supply power to a light source part 30 of the emergency luminaire 10 in case of failure, and includes a connection part 3 connecting to a battery line 19a from a lighting circuit part of the emergency luminaire 10, a maintenance start input part 5 for outputting a maintenance start signal for starting the maintenance of the storage battery part 2, a pseudo load 6 connected to the storage battery part 2, a determination part 7 which switches from charge of the storage battery part 2 carried out by power from the connection part 3 to discharge to the pseudo load 6 from the storage battery part 2 in receiving the maintenance start signal, and determines adequacy of the storage battery part 2 by a voltage of the storage battery part 2 when a predetermined time passes, and a display monitor 8 for displaying a maintenance result determined by the determination part 7.
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