yea
Non-Maintained
The lamp operates only in the event of a mains failure.
Maintained
The lamp operates at all times and stays lit for the minimum emergency duration after a mains failure.
Combined Non-Maintained
The luminaire has two or more lamps. One is energised from the battery; the others are lit from the mains. The battery operated lamp is only lit in the event of a mains failure.
Combined Maintained
The luminaire has two or more lamps. All lamps are energised from the mains supply and operate during normal operation, and only one of them is illuminated during a mains failure.
yea?
Non-Maintained
The lamp operates only in the event of a mains failure.
Maintained
The lamp operates at all times and stays lit for the minimum emergency duration after a mains failure.
Combined Non-Maintained
The luminaire has two or more lamps. One is energised from the battery; the others are lit from the mains. The battery operated lamp is only lit in the event of a mains failure.
Combined Maintained
The luminaire has two or more lamps. All lamps are energised from the mains supply and operate during normal operation, and only one of them is illuminated during a mains failure.
yea?