Arizona law says (ARS §28-931) that any reflectors or lights mounted on the front or front side of a car be "amber" which is a yellowish-orange color. And any reflectors or lights on the back or side back must be red, except for signal lights which must be red, yellow or amber. The light illuminating the license plate must be white.

Arizona Law (ARS §28-940) also addresses other car and truck lighting equipment. A car or truck cannot have:

• more than two side or fender lights and they must be amber or white color.
• more than one running board light on each side and they must be white or amber color.
• more than two backup lamps (like a spotlight) but the backup lamps must not be shining while the vehicle is in motion.

Also, Arizona Law (ARS §28-947) has restrictions on the type of headlights you can have, and their brightness. And it is against Arizona Law for any car other than an emergency vehicle to have a red or blue light visible from the front of the vehicle.

So, Arizona Law allows you to have certain lights of certain colors on your car, but you cannot put differently colored lights on the body, under carriage or tires of your car. Safety is the priority, and colored lights can be distracting. People's eyes need to be on the road instead of looking at cool lights in order to avoid causing accidents.

Don't forget that some lights on your car are mandatory, like break lights, turn signals and headlights. You can be pulled over if any of these lights aren't working properly, so make sure to do regular maintenance on you car.