What is non-maintained emergency lighting?
Non-maintained emergency lighting is a luminaire made solely for emergency use. It is designed to come on in the event of a mains power failure, making sure all emergency exit routes are clearly illuminated, but will not be active as your normal day-to-day lighting system.

What is maintained emergency lighting?
Maintained emergency lighting luminaires are built to be active continuously in every day life, and through the event of a power cut. Just like a normal luminaire, when running ordinarily they will take power from the mains supply, but when they switch to emergency mode they take power。