Has anybody tried these yet. It looks like a good deal, lots of light for only 35W. I already have the H4 conversion, but the 55W is at the extreme limit of an RM21 system. Of course, there's a catch. Where to hide the ballast and relay.
I tried an HID in my Cagiva, I didnt like the dipping system which was a solenoid which moved the lamp, it was a retro fit into the existing shell and wasnt a great leap in performance. I went back to stock after the dip failed. To get the full benefit of HID I think you would need the matching reflector and lens .
71 Devimead A65 750 56 Norbsa 68 Longstroke A65 Cagiva Raptor 650 MZ TS 250 The poster formerly known as Pod
BTW: I have noticed that the quality of the lamp can make a big difference. Cheap lamps might not put the filament in the correct spot for proper focus. I used to have a big gap in the center on low beam until I bought some good Phillips lamps.
... the flat- and convex-lens ones are not the stuff of the legend. Allan's TriumphRat forum link takes you to a picture of a concave-lens one and a link to Daniel Stern Lighting, but the post is eighteen months old and DSL aren't listing them now. The point of the concave-lens ones is they were also known as 'Z-beam', because dip isn't a simple angle up the near- or off-side but includes a second cut-off about half-way, so the dip beam could be projected much, much further.
Thanks, I've found the 45/45 H4 (Eiko 4745) to be adequate for my purpose. RM21 system starts charging at about 3000rpm. I only ride at night on well-lit streets in town and have no problem with night vision.