Installing lights and electronics (Goal Zero)

Hi everyone, am hoping you could help me figure out some electrical wiring procedures.

I am converting my 97 Astro and just purchased a Goal Zero Boulder 100 and a Yeti 400 to run all my electronics. I am having trouble finding a definitive guide for installing the LED ceiling lights (Acegoo 12V).

Here’s my general understanding: install the lights, attach (-) and (+) wiring to the lights with quick splice wire connectors to a single zone switch/ dimmer (12V). Then run more wires to a fusebox from the dimmer, then run wires from the fusebox to the goal zero. Is this in the ball park? I still have no idea which type/ diameter of wires to use :frowning:

This is a good guide for wire sizing, fuse sizing and the like. It is for boats, but it works on water then it is more than enough on land. Probably more so.

https://www.bluesea.com/support/articles/Circuit_Protection/1437/Part_1%3A_Choosing_the_Correct_Wire_Size_for_a_DC_Circuit