Thanks Rusty; yeah I think these are a keeper. And correct; you'll need the KU3234 adapter which is sold separately.

There are two hex-head bolts that hold the bottom of the plastic fender on the bike; you have to unscrew these, position the lights over the holes, and then screw the bolts back in. There's also some double sided tape on the back of the light that help secure it.

Maybe Wingstuff will chime in about the vertical lights...