I did a quick search and didn't see any similar topics. Has anyone tried these? I suppose the 'white' effect would require running another wire to the bulb.

http://www.v-leds.com/Shop/Control/P...id/0/SFV/32481

Here is a vid:

http://videos.streetfire.net/video/V...urn_282433.htm

 

That is my video, and they do not require an extra wire. It's all internal. Simply replace your 1157 bulb with that one and you are done. There are a few other socket types available, but only in the dual stage variants.