I just bought a 4 channel remote switch from Ebay (China)
pretty cool piece of kit for $13.00
2 remote fobs with 4 buttons ea
1 Master control unit
The Master control unit contains 4 relays NC, NO & C
It can be programmed as momentary, self lock, and latch
I programmed mine = 1 push on - 1 push off. I think that is latch mode?
I used channel 1 for my Jeep rear storage area - where the seats used to be
Channel 2 draws light
Channel 3 Roof top tent
Channel 4 lighting under my roll out awning
I also upgraded my 1500w / 3000w inverter to a 2500w / 5000w and my second batteryfrom 40amps to 105amps, i added a charger so I can top up at caravan parks etc and a volt meter to keep an eye on the state of charge etc.
Lastly I added some really bright led lights , I still need to paint them black
but WoW they are super bright!