What does "overdriving your headlights" mean?

"Overdriving your headlights" refers to the situation where a driver is traveling at a speed that exceeds the distance the vehicle's headlights can effectively illuminate the road ahead. When driving at night or in dark conditions, headlights provide illumination for a certain distance. If a driver exceeds that distance, they may not have enough time to react to obstacles, road conditions, or other hazards that lie beyond the reach of their headlights, which can significantly increase the risk of an accident.

Understanding this concept is crucial for safe nighttime driving. It emphasizes the importance of adjusting your speed according to visibility conditions. If you're driving too fast for what you can see, you won't have adequate time to respond to any potential dangers, which is why it's important to be aware of headlight range and adjust your speed accordingly.