my new art room custom lights

Any way you can post some info on that setup? I would love to do the same thing with the taillights that I have but don't know enough about electrical to figure out what I needed. I was looking into a power source like might be used for a laptop, or video game or something. Something that plugged into the wall but had a 12V output. Not sure if I'm on the right track or not. Thanks.
Pic.1 and 2, this is the set up I used: Two door chime transformers, 12v at 10 amp max outputs and fused at 7 amps, the left transformer feeds the left side lighting and the right transformer feeds the right side lighting, I installed an on/off (dpst) switch that controls the transformers that are hooked up in parallel and are being fed by a power cord (120v).
Pic. 3 and 4, left and right headlights and turn signal lamps, all stock. No 120v conversions.
You can buy a 12 v regulated power supply like you said, just make sure that its rated at 20 amps. Just to be safe. I used door chime transformers because they where readily accessible at the time. If you need help you're more than welcome to PM me and I will be more than happy to guide you step by step.