I used the complete Hornet headlight. I want to have a chrome bucket again though, might try to mod one or have this (plastic) one chromed. It uses two H11 bulbs (yes that is 11, not 1). The light is much brighter than the stock H4 bulb and I can have both bulbs lit at the same time. The wires are downright terror, I had no problems with them in the original headlight though. I also have some extra wires because of the dual light thing. After a while when the wires get used to their new home it will be a bit easier I think.
It's too bad I crashed my bike the day after this mod, (the headlight is still in one piece) so I have to spend the money I've put aside for xenon lights on repairs