I’m thinking about upgrading the lights on the Land Rover, any suggestions?

Currently they are 2x halogen conversion headlights and 4x wipac 5″ lamps on the rollcage above the windscreen, all have decent uprated bulbs. The rooflamps are switched with the main beam but need to be able to be used independently for river crossings at night as the headlights aren’t sealed so they don’t like getting wet when they are on. I do a surprising amount of river crossing at night believe it or not and its one of the scariest things you can do offroad.