Here's a good source. Also, there is a bulb with a city light availabel :
http://www.rallylights.com/all/lights/h ... facturer=4
Here is what I use
http://www.rallylights.com/all/lights/h ... -lamp.html
and I have this H4 LED on my workbench to be installed this week:
http://electricalconnection.com/other-l ... -hl-h4.htm
In reference to your LED bulb, looks good, but in my case, the fault is with the light units themselves and where they send the light. This LED bulb you are about to use may simply put more light everywhere the H4 bulb does now. How about getting it on your bike and letting us know the results and giving us you impression of how much difference it makes. Look forward to hearing from you. I think David may be keen to find out as well. regards and all the best Dereck
JD