This looks like a big improvement over the Concours single headlight.
According to Gary Murphy: "These be sportin' twin Hella 90mm's with H9
bulbs pumping out 1800 lumens at 65 watts (stock H4 is 1650 high / 1000
low). Only one bulb on at a time, one set up close the other set up for
a "high" beam Unit comes with wiring harness, twin relays and is plug
and play (sorta) you can swap back to stock with no grief."