I'm still in the layout planning, but I need to know what size wire for internal wiring of 12vdc items. Items include 12vdc LED lights (3.2 W max that I have right now) and an RV ceiling fan (12W per the manufacturer). I'm looking at 4-6 light sets (used to light the area you are in not the entire cabin). The cabin is 14' x 20' and the "pig tails" on the lights I have are 18awg wire. Something tells me I need to run something bigger than that. Max run length would be no more than 34'. I was thinking of running possibly a 10awg wire as a tap off of that, but then figured I'd get a DC fuse block and make runs just like traditional AC wiring. I will also have some 110 outlets run from a fuse panel for tieing into the inverter and for running on generator. Thanks in advance!