When the DJ announced a contest, the phones 'lit up'. [=the lights on the phones lit up because many people were calling]
His eyes/face 'lit up' [=he looked very happy and pleased] when she walked in the room.
He 'lit into' his employees for their sloppy work. [=he criticized them very harshly]
(..) The skin and hair split and came off of her face so that there was nothing except the skull and orange light came out of her hair and it lit all around and fire shot from her eye sockets and began to burn my stomach and she said (in screechy voice) ''Where did they get chocolate cake from?!'' (..)1983 Bill Cosby: Himself