It's a Patriot Roofrack, & yes they are expensive.
The roof lights are two spots in the centre and two floods on the outside.
They are all wired in using 7-core trailer wire from a fusebox on top of the inner wing. (They are powered from the Aux battery that also does the winch!
)
Each pair of spots has a relay of it and I ran the switch wires in behind the dash to these switches:
The spots only come on with main beam but the floods can come on with the side lights so I can use them when wading at night without blinding the person in front!!