What color light can a license plate light only be?

• A. Red
• B. Blue
• C. White
• D. Green

Answer: (C)

The correct answer is white, which is the only permissible color for a license plate light. License plate lights are specifically designed to illuminate the rear registration plate of a vehicle clearly and without obstruction. The use of white light ensures that the license plate information is visible to law enforcement and other vehicles, allowing for proper identification and compliance with traffic regulations.

The other colors, such as red, blue, and green, are typically reserved for different functions in vehicle lighting. For example, red lights are often used for brake lights and taillights, blue lights may indicate emergency response vehicles, and green may be used for specific purposes like certain types of vehicle identification. Using any of these colors for a license plate light could hinder visibility and identification, leading to confusion on the road. Therefore, maintaining a white light for this function is essential to meet legal standards and promote safety.