A couple of links that may be helpful:
DISCLAIMER: I have not used either of these threads to make changes to my own bike. My goal was to get to an LED turn signal indicator with LED bulbs in the stock housings along with all other lights being LED. Bailed on that for the time being and will save for a winter project. I went back to the stock bulbs in the signals and signal indicator while leaving the LED bulbs in the other indicators, speedo and rear tailight (along with JNS headlight).