Light

Lighting is a class of objects lighting up a room, or a part of an outdoor area.

The outdoors receive daylight during daytime. Light spreads into rooms through windows, window-doors, walls and half-walls.

Lack of lighting in a room, or a location outdoors, damages Sims mood; through Room motive  (The Sims), Environment motive (The Sims 2), or the It's Dark moodlet (The Sims 3).

Some creatures, such as Vampires, need no lighting.