Which one is the headlight in Subject 3?

[McRyan]

Headlights refer to the vehicle's high beam, low beam, and turn signals. In the Subject 3 exam, turning on the headlight means turning on the low beam, and only the low beam is allowed. This is because each instruction in Subject 3 is interconnected. If you start with the high beam, subsequent operations cannot be performed. When using headlights, pay attention to the following points: Keep the headlight lens clean: Especially when driving in rain or snow, dirt and dust can reduce the headlight's illumination performance by 50%. Some models are equipped with headlight wipers and washers. When two vehicles meet at night: Vehicles should switch from high beam to low beam when they are 150m apart to ensure driving safety. Ensure the performance of the headlights: After replacing the headlights or every 10,000 km driven, the headlight beam should be checked and adjusted. Regularly check the bulbs, wiring sockets, and grounding for oxidation and looseness: Ensure that the connectors have good contact performance and reliable grounding. If the connection is loose, turning on the headlights may cause current surges due to circuit interruptions, which can burn out the filament. If the connection is oxidized, the bulb brightness may decrease due to increased voltage drop at the connection point.