In Open, we turn out the lights.
In Mobius, lights are left on at all times, as some Commanders are afraid of the dark. Lights are allowed to be turned off when 2 Commanders on opposing teams in the same room mutually consent to temporary removal of the bulb.
I think there are some bulb jokes to be had here.
Q: How many PvPers does it take to change a light bulb?
A: None. They will shoot the bulb then each other.
Q: How many members of Canon does it take to change a light bulb?
A: None. The bulb will remain, they will listen to it for hours hoping to pick up on noises coming from it, which they will analyse for possible meaning.
Q: How many haters does it take to change a light bulb?
A: One, who will complain the bulb was the wrong colour in the first place, they will not be happy with the selection of replacement bulbs, and then write a long review on the manufacturers website about how bad the bulbs are.
Q: How many fanboys does it take to change a light bulb?
A: None. The bulb does not need changing. Its just a temporary situation and part of a 10 year plan, and that sooner or later the bulb shall shine anew all by itself!