What does integrated high/low beam headlight mean?
2 Answers
Integrated high/low beam headlight combines both high beam and low beam functions in a single bulb, which contains two filaments for instant switching. The functions of integrated high/low beam headlights are: 1. Bi-xenon projector - By controlling the shutter to block portions of the high and low beams, it enables simultaneous illumination of both beams; 2. Wider and longer lighting coverage - The projector lens makes the light beam more uniform and concentrated with stronger penetration, enhancing driving safety. Different automotive lighting usage scenarios: 1. Position lamps (also called width markers) should be turned on during rain or dim light conditions; 2. Low beams are used on roads with street lighting; 3. High beams are used on roads without street lighting; 4. Turn signals must be activated in advance when the vehicle needs to make a turn.
The combination headlight, like the one on my car, uses a single bulb to switch between high and low beams! In the old days, cars had separate bulbs for high and low beams, which required two bulbs. Now it's so much more convenient. When you turn on the low beam, a shutter blocks the upper half of the light, and when you switch to high beam, the shutter instantly retracts, flooding the road with light. But once, when my bulb burned out, both high and low beams failed, and I had to drive home in the dark—it was terrifying. These lights are quite delicate; if the motor jams or the lens gets water inside, repairs can cost thousands, so I always avoid spraying water directly on the headlights when washing my car.
