Why do some car have blue lights and some have yellow lights?

Question

Why do some car have blue lights and some have yellow lights?

Answer 1

The ones with those "BRIGHT" blue lights should (and probably will be ) be BANNED. ESPECIALLY when they run the regular lights PLUS the parking lights that new HID color.  "A REAL ROAD HAZZARD"

Answer 2

One are traditional bulb headlights. Those are yellow.

Halogens are more white in color, sometimes light blue.

The blue ones are called Xenon headlights, and the high-beams on those d**n things will basically give you laser-eye surgery. Some jerk was tailgating me on the highway once at night, REFUSED to dim the things, and i had to pull over and blink rapidly for about 10 minutes before I could see ANYTHING again.

Answer 3

Are you taking about headlights? If so the blue lights are xenon headlights. They are bulbs filled with xenon gas to project a clearer more wide spectrum light. The yellow ones are just your standard head lights.

Answer 4

different car companies use different lights i guess.