An Emergency luminaire containing separate lamps for
normal and emergency operation
M: Maintained : an emergency luminaire in which the
single emergency lamp operates on both normal and
Non-Maintained : an emergency luminaire in which the
lamp operates on the emergency mode only, on
failure of the normal supply.
: an emergency luminaire containing separate lamp
for normal and emergency mode.
: an emergency luminaire with integral batteries,
built-in charging system and mains
feature relay/semi-conductor system often incorporating
an inverter and controls for
sensing power failure and automatically changing over
to emergency batteries power.