Just bought a 16' Gatormade trailer and damn does it pull nice behind the 5.0. Since I have R/I lights on my truck already, I thought it would be nice to add a lightbar to the trailer to help light things up at night. I noticed that on my R/I switch from another kit, that it is "waterproof". Would there be any issues with mounting this on the outside of a tool box to control a lightbar? Any help would be greatly appreciated.