Traffic Laws on Vehicle Underglow Lights

Written by lindsay nixon
  • Share
  • Tweet
  • Share
  • Email

Underglow lights are neon lights attached to the undercarriage of a car, motorcycle or truck. These lights provide a coloured glow under the vehicle and make it appear as if the vehicle is floating. Adding underglow lights is a popular feature on customised cars. Underglow lights are sold in red, green, blue, yellow and purple and are can be either neon or LED in nature. Some states, such as Oklahoma, have explicitly outlawed the use of underglow lights while other states, such as California, simply place limits on them. There is no federal law on the use of underglow lights.

Red and Blue Lights are Problematic

Red and blue lights are prohibited in many states as these colours are often reserved for police and ambulance vehicles. For example, in North Carolina it is unlawful to have aftermarket red or blue lights installed on a vehicle. The policy behind this relates to confusion with public and government services. A driver may see red or blue lights coming up behind him and pull over thinking it is an emergency vehicle or a police officer, thereby causing an unexpected collision or other traffic incident.

Limits on Placement and Candela

The amount of light put out by underglow lights may also be limited by state law. For example, in California underglow lights can not emit more than 0.05 candela per square inch. States may also limit what sides of the car can contain underglow lights. For instance, underglow lights might be permitted on the right and left side of the car but not in the front or rear of the car.

De Facto Bans

Some states, such as Connecticut, require all aftermarket lights be shatterproof. Connecticut does not expressively prohibit underglow lights by law but since no underglow lights on the market are shatterproof, they are thereby unable to be on the market. Other states, such as Nebraska, require the lights not be visible under the car, making it difficult to add lights to the car without doing substantial work to the body.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.