Working on some lights for night enduros this year, Anyone have any thoughts on the differeences between these two:
KC Slimlite (130 watt, 6 inch round)
PIAA Pro Xt 80 (120 watt, 6 3/4 round)
Hella Ralleye 4000 compact driving beam (6 3/4 round 55 watt)

The KC's are smallestand have the most wattage- does this lead to a good light pattern and brightness?
These lamps will be used for apex lighting; I'm usding the stock headlights for fill lighting in the front.

Should I be looking more at diameter verse wattage? High wattage bulbs in nay combination of of xenon are available.
http://www.rallylights.com/hella/H1.asp (This hows H1 choices, but H3 are availabe in the same myriad of choices...)
General thoughts on lighting?

thanks!!
Marcus