747 - dark cabin at night

Hi all,

I’m sure there is a way easy answer I am overlooking…I’ve been searching online and can’t seem to find anything relating to dark cabin lights on the 747. I normally start my flight right on the runway/ready to take off. At night, the other aircraft have lights on but the 747 is spookily dark. There is no light coming from the windows too on external view, lol.

Your help is appreciated…and I’m already humbled. Thanks!