Backlit Door Sills 12V Cables, for wiring from each door sill box to you car's 12V system.  Can be used to wire from box to your dome light wiring, so that backlit door sills will light up when your car doors are opened.  Alternatively can be wired to an on/off switch on our switchplates.  It is really up to you.  Two cables are included, each 6' in length.