The stock square headlight for the old K-RS/RT/LT bikes has a 10W white filament bulb and associated reflector in the top of the headlight assembly.

V1.0: Many moons ago I found a 12V 18-LED bar to replace the parking. Old LED technology and not incredibly bright but at least it was LED.

After messing with all sorts of things I ended up mounting four of these $5/ea "aquarium" LEDs from Fleabay to pieces of PCB project board with some brass wire and then installed them in both sides of the top of the headlight. Since the bike is painted green and I wanted something that would stick out in traffic I put a pretty bright green BA9s LED where the old parking light bulb used to be.

And of course I also wired them up with relays to double as turn signals:

 

Since shooting that video I learned that the use of green forward facing lights is reserved for firefighting personnel traveling to emergencies in their private vehicles. (Weird law, huh?) Therefore, I replaced the BA9s LED in the middle with a nice bright 1W white LED.

© 2013 Drake Smith - Please do not use or reproduce this elsewhere.  Feel free to link to it though.