What color of fog lights has strong penetration?

[StReagan]

Lower color temperature results in stronger penetration, while higher color temperature leads to weaker penetration. For fog lights, it is essential to use yellow light. 1. Reason: The light from fog lights must have a scattering effect, spreading the beam forward into a larger light cluster without being dazzling. The scattering intensity of yellow light is five times that of red light, making yellow light more efficient than red light. 2. Signal requirements: Green and blue lights also have strong scattering effects, but green light is used as a 'safe, pass' signal light, while blue and purple lights are dim and similar to the color of the sky. Clearly, these colors do not meet the requirements for signal lights.