Thanks Spiderman for all the work on finding decent inexpensive LED bulbs. I received my G6 bulbs (via Cindy) a couple of days ago and have been having fun getting them sorted. I'm in Australia where we ride on the left, so I needed to modify the base of the bulb to create the proper bias. To do this I set up my headlight in a cut-down cardboard box and wired up a 3 way switch and 12V battery so I could see the light pattern on the wall about 5 metres away as I tried different twists and turns ... I detached the inner plastic part from the metal base and experimented with different angles. Once I had the correct angle I marked and drilled a couple of holes in the base and refitted the plastic bit. I guess I have rotated the bulb about 25 to 30 degrees CW to get the right cutoff. Then I played with the shields. I found it best to bend them upwards a little - raising the wings if you like - and tilting them forward as well. The light is super bright - very much better than the old Halogen, which was pretty good for warming my hands but hopeless for seeing where I was going at night. I'm looking forward to getting out on the road tonight for some testing. By the way, it was only on the second reading of your thread that I noticed your recommendation on page 1 of a particular bulb for round headlights. I'm sorry I missed that, but I'm really happy with what I have now and may try the other in the future as dollars permit. Thanks again.