I have only finished my first week of groundschool for a passenger jet so I may be wrong, but that would be my guess.
Wrong guess. Back to groundschool for you young Aeromuz!
When an aircraft is in flight and less than 1,000 feet above terrain, emergency lighting system shall be switched on
Umm....NO! Emergency Lights remained Armed normally.
No reason to ever switch them on!
What RENURPP said.