Currently, I have two rear lights, a helmet light and also bar lights plus reflective spoke tape (that are awesome).
Worked with my friend last weekend to put more lights on. He is the head mechanic at the shop by me and is the only one to have these lights and he is also a commuter. He built them from different parts and they are awesome.
They run off the water bottle battery and controlled by remote. It has something like 30 colors you can pick. Love them!
Here is a pic of my commuter in the light.
Here are two links to videos of the lights on my bike. The videos sorta suck so I apologize.
http://www.youtube.com/watch?v=skEhA...ature=youtu.be
This one I sent to my commuting friend, Chris, in CA. Also, no sure how to rotate the video. lol
http://www.youtube.com/watch?v=iiozY...ature=youtu.be