Uuuuummmmm ... well since mine is a low-tech tear and I'm using it for Scout Camping ... I didn't wire up any lights. I just put in a small screw in the sidewall and mounted one of those push-on push-off lights powered by 4 AA batteries.
Gives off more than enought light and I can even read if I wish. I guess thats one advantage of not using any plans of any kind ... you just kind of make up things as you go.
Well ... OK ... maybe thats just me.
Wild (I think I'm Dry Now) Mike