Originally Posted by NicholasP
Does anyone know if white light under the car are illegal like white led under glow (please no "that's rice" jumbo jumbo I just want an honest answer)
To the best of my knowledge, undercarriage lighting is not addressed by the feds (NHTSA), so as others have said, it becomes a state preference, if specifically addressed by law.
Here in Missouri and according to a local MO State Trooper, you can run any steady color, as long as the lighting fixtures are not visible. That generally means, tuck the tubes up under the car and ensure you are good to go by moving back 20-30 feet or so, squat down and inspect your ride all the way around for fixture visibility. I ran purple neon under an '07 Performance White GT. I loved the look (especially on wet pavement) and was never stopped for lighting in any state that I traveled through.... (MO, AR, TN, MS, AL, GA, IL, IN, KY, OK, KS)