Final answer:
In poor visibility conditions such as rain, fog, or snow, low-beam headlights should be used to increase visibility without causing glare. LED lighting fixtures and fog lights are also beneficial in such conditions as they can be adjusted to provide better visibility without increasing glare.
Step-by-step explanation:
For better visibility during rain, fog, or snow, it is recommended to switch on your vehicle's low-beam headlights. This is because high beams can cause glare in such weather conditions, making it more difficult for you to see, as well as for other drivers to see you. Low beams direct the light downward onto the road and provide enough light for you to see without creating significant reflections of the precipitation. In some vehicles, there are also fog lights that are specifically designed to improve visibility in foggy conditions by emitting a wide, bar-shaped beam of light that is aimed lower than the standard low beams, thus cutting through the fog without causing glare.
Another important aspect of using headlights in poor weather conditions is the color and intensity of the light. Modern LED and automated lighting fixtures provide better control over these parameters and may enhance visibility by permitting adjustments to the beam size, intensity, and even texture without causing as much glare as traditional headlights. Finally, always ensure that your vehicle's headlights are clean and in good working order to maximize visibility during adverse weather conditions.