Show lights.
By DOT regulations they do not put out any light worth the time or money to install them.
I do not know wether the base is flexible enough to conform to the different contour of your roof.

To me they are just a set of overgrown cab marker lights.
But Hey I remember the days when many installed twin trucker antennas and cab lights on Chevy 1/8 ton pickups.

Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.