I have these Catz 55 watt lights that I removed from my BMW and relocated to the Strom. We bought them as a group off Ebay for about $120 a set and what is really cool is there are several different bulbs you can run in these, from white, to white/yellow, amber(shown), purpleish and some others. The bulbs are interchangeable.
On my old bike I had two sets, an upper set in yellow/white for night time lighting and the lower in amber for daytime running lights. (Shown below)
I have these mounted on the Wee to the forks where the reflectors used to be. Seemed like a perfect spot, but it was tricky finding M5 bolts in a 50mm length, I had to special order those and some spacers for the spaces in between.
I don't have them wired up yet as I'm waiting to get an Eastern Beaver PC8 installed under the seat first, and that is awaiting funds to magically appear in my bank account....:sad:
I know they suck up a lot of precious watts, but until I have a bunch of other stuff running, I'm not too concerned about it.
As they looked on my BMW, these things are great traffic stoppers, people seem to really notice them. I've had several comments from other riders that they were very noticeable, but not too obnoxious or blinding. That's another set under the headlight (not lit) with the white/yellow bulbs.