Originally Posted by randya
My personal experience with many of these units is that the resistance of the Dymotech 6 is not that different than the resistance of the older Union dynamos, and that the Union lamps have significantly better optics than the Lumotech (well, that actually depends if you want your beam spread laterally [Union] or longitudinally [Lumotech]; I prefer the wider beam of the Union, and IMO it's better focused, too). You can get screw base halogen bulbs for the older Union lamps from Reflectalite:
http://www.reflectalite.com/halogenpage.html
agreed. the light beam is very good especially when i use both systems at the same time as i have 2 identical sets on the same bike. that's why i want to get the same dynamo to match the other one. i really don't like the dynamos on peter's site. they are big & bulky & i don't like plaxtic housings--cheap. i like the look of my dynamos the best. if you can hunt down this unit, i will gladly buy it...