Final answer:
You are legally required to turn on your vehicle's headlights a half-hour before sunset until a half-hour after sunrise, and when visibility is less than 500 feet. The lights may dim when starting the car engine due to battery resistance, and while full moon blinding claims are less credible, safety should always be the priority unless an emergency justifies breaking a rule.
Step-by-step explanation:
By law, while driving a vehicle, you are required to switch on headlights a half-hour before sunset until a half-hour after sunrise and when visibility is reduced to 500 feet. As you drive, various situations may affect the use of your headlights. When starting the engine of your car, you might notice the passenger compartment light dim due to resistance inside the battery itself. Additionally, external factors like the full moon might impact visibility while driving, though the likelihood of being blinded by the moon is less credible. It's important to always adhere to the traffic laws for safety, unless in extreme emergencies; for example, if there's a medical emergency that necessitates breaking a traffic rule for greater utility, such as safely running a red light to get to the hospital quickly during off-peak hours without putting others at risk.