No lights, as in no park lamps no dash no hi no low ? If its just headlights, check dimmer.
If it is everything, check headlamp switch. No power, check fusible links.
I have nothing aside from my blinkers, and flashers. If its the fusible links, can I take them out, and install regular fuses in place of them? I'm also not sure on how to test them, but google is our friend.