The advertising lighting of the 2 pylons (see 2 red boxes) as well as the ramp lighting can be controlled via a switch in the secretary's office (see picture). This switch has the following positions:
0 = Off
Hand = Always on
Automat = Light is controlled by a timer
The timer is in the electrical cabinet in the kitchen next to the secretary's office. The switching times can be easily set by adjusting the small sliders on the disc.