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Taillight Core Definition and Function

2025-07-29

Taillights are lighting devices installed at the rear of vehicles, vessels, or machinery, mainly used to transmit driving status information to the rear in low-visibility environments (night, rain, fog, tunnels, etc.).

Tail lights are lighting devices installed at the rear of vehicles, vessels, or machinery, primarily used to transmit driving status information to the rear in low-visibility environments (night, rain, fog, tunnels, etc.). Core functions include:

Position Indication: Clearly defines the vehicle's outline with red lights to prevent rear-end collisions (e.g., combination tail lights on the rear of a car).
Status Warning:
Brake Signal: High-intensity red light illuminates when braking (brightness ≥ 200cd, response time < 0.3 seconds).
Turn Signal: Yellow or orange lights flash to indicate lane changes or turns (flashing frequency 1-2Hz).
Reverse Warning: White light illuminates to warn of rear obstacles (e.g., forklift reverse lights).
Special Scene Applications:
Emergency Warning: Hazard lights (hazard warning flashers) are used for vehicle malfunctions or temporary stops.
Night Driving: Some tail lights integrate reflectors, which can still reflect rearward light without power (e.g., passive bicycle tail lights).

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