Clean headlights help you see better at night and in poor weather conditions. This small task can also help prevent glare, which can be intensified by dust and dirt on the glass. Clean windshields are also important because a dirty windshield reduces vision.
And remember in California: The California Department of Transportation (Caltrans) is utilizing its electronic message signs on freeways, Highway Advisory Radio to remind motorists that it is the law to turn on their headlights when driving in the rain.
WIPERS ON – HEADLIGHTS ON!