There's some headlight info here:
topic29979.html
And this is an earlier posting of mine where I installed a 2-element LED headlight:
viewtopic.php?t=28981&highlight=
I eventually replaced that one with an 5-element LED unit because it provides a much better light pattern:
http://www.banggood.com/Motorcycle-LED- ... 35011.html
This one has five elements, or put another way, five LED segments that cover almost 360 degrees in circumference around the unit. Highly recommended.
Most, if not all LED conversions will accept both DC or AC power. They internally convert AC to DC if supplied with AC power.
The attached photo somewhat shows the low-beam light pattern being thrown out. I know it doesn't really show the range, but the important thing to note is how even the light pattern is. The light is pointing a little high in the picture because the back end of my scooter is up against a curb that is lower than the middle of the street causing the headlight to point up a bit.
Since I ride a Blur, I don't know if it will fit a Buddy. Installing it in the Blur was a pain only because access to the back of the headlight bucket in a Blur is tight.
The reason some people don't like LED headlights is because they've only seen (or heard about) the conversions using only 2 elements. A typical headlight reflector/bucket is designed around incandescent/halogen bulbs which distributes light 360 degrees around itself, so when you install an LED with only 2 elements, the light pattern thrown out of the reflector is all wrong. With a multi-element LED unit, like the one I'm using, the light pattern is pretty much like an incandescent.
There are four reasons I went with LED:
1)
Amount of light produced vs power used. Mine makes at least, if not more Lumens than a premium halogen bulb while using less than half the power (wattage).
2)
Very little heat generated compared to a halogen producing comparable light output.
3)
Cost. At $20, my LED conversion is half the cost of a premium halogen bulb.
4)
Longevity. An LED will last at least five times longer than an incandescent bulb. Plus, there's no fragile filament to get shaken around.
So in my opinion, get an multi-element LED headlight conversion, you won't be disappointed. But, don't get it from
superbrightleds because they're too expensive. Go to either eBay or Banggood for much better prices.