前大灯是公路车辆上发现的一些最重要的灯。它们提供了帮助驾驶员既可以看到的照明，又可以在路上开车时看到。光线由安装在塑料或玻璃头灯外壳中的高强度灯泡提供。大灯灯泡可以具有多种形状，尺寸和设计，并且设计为燃烧时可更换。由于灯光为低光条件提供照明，因此对于车辆的整体安全性和驾驶性非常重要，尤其是在夜间驾驶时。当大灯灯泡故障时, the vehicle can be left without the very important safety and visibility that is provided by the headlights. Usuallyfaulty headlightswill produce a few symptoms that can let the driver know that they may require attention.
1. Dim headlights
One of the first symptoms of a bad or failing headlight bulb isdim headlights。随着时间的流逝，大灯灯泡可能会磨损，并开始明显发光的灯光比新手时发光。昏暗的大灯将无法提供适当的照明，通常也表明灯泡正在接近其使用寿命的尽头。
2. Headlights flickering on and off
头灯灯泡不良或失败的另一个症状是闪烁的大灯。如果大灯灯泡丝被损坏或过度磨损，则可能导致灯泡闪烁。闪烁的灯泡通常会在该问题开始后不久就会烧毁。闪烁的灯泡也可能是线束或连接不良的标志，因此强烈建议进行适当的检查。
3.大灯熄灭
Another, more serious, symptom of a bad headlight bulb is aheadlight that is out。With regular use, headlight bulbs will eventually burn out and cease to function. A headlight that is out is usually a sign that the headlight bulb has burned out and needs to be replaced. It is recommended to replace them in pairs if possible, as the opposite headlight will also usually be near the end of it’s service life if one of them has burned out.
大灯灯泡是任何车辆上发现的一些最重要的灯泡，因为它们的灯提供了可见性和安全性，这是在低光驾驶情况下所必需的。如果您的车辆在上面显示症状，或者您的头灯之一燃烧了，则将车辆诊断为专业技术人员，例如从YourMechanic诊断出的车辆，以确定灯泡是否应该是万博体育入口replaced。
