The four core components of an automobile lighting system include external lighting fixtures, internal lighting fixtures, external signal lamps, and internal signal lamps. Among them, headlights need to uniformly illuminate the road surface for more than 100 meters and avoid glare, with a power usually ranging from 25 to 60W. Internal lighting fixtures such as dome lights and instrument lights provide cabin lighting, with a power mostly between 2 and 20W and white light colour. Signal lamps are divided into external and internal categories. External ones like turn signals and brake lights are used for vehicle status warning, while internal ones such as instrument indicator lights display the status of vehicle systems. Modern lighting systems generally adopt LED technology to improve energy efficiency and service life. These components work together to ensure driving safety and operational convenience. When purchasing, attention should be paid to the compliance and adaptability of the lamps.
