I'm using the same lense bulb unit that Blue900 is using. Not only is it bright it throws more light in front of you and less out too the sides and on your feet. On low beam it throws a spot up and to the right, this helps you see the edge of the street and side walk better. Lets you see the people and animals over there before they get on the street.
Before I did the mods to the charging system and cleaned up the switches the extra draw from the headlight made keeping the battery charged. I have converted my brake/tail light and turnsignals to LED's, very bright and almost no current draw. This compensates for the extra from the headlight.
I was having trouble with bad grounds on the headlight, this was blowing the bulb. I was in Harbor Freight and saw a headlight bulb in there for like $4.99, It was a 55/65 watt, it is a very white light with a slight blue tint. I really like the light, how long it will last is the only thing.