How Long Do Halogen Headlights Last?
2 Answers
Halogen headlights typically last between 300 to 500 hours, being one of the more commonly used types of automotive lighting. The working principle of halogen headlights involves: injecting halogen gases such as iodine or bromine into the bulb, where the tungsten filament sublimates at high temperatures and chemically interacts with the halogen. Upon cooling, the tungsten re-solidifies on the filament, creating light through this repeated cycle. The structure of halogen lights is relatively simple, characterized by: 1. Easy brightness adjustment and control; 2. Stronger penetration in poorer visibility conditions; 3. Effective illumination. However, halogen headlights are not highly efficient, generate significant heat, and have a lower color temperature compared to xenon lights. Additionally, the lifespan of halogen bulbs is relatively shorter.
I've been driving for twenty years, and halogen headlights typically last around 500 hours, but it really depends on how you use them. For example, if you drive long distances every night, the lights might burn out in just five or six months—I've experienced the dangerous situation of lights suddenly dimming at midnight, which almost caused an accident. If you drive less frequently in daily life, they might last a year or two. There are many reasons for short lamp life: driving too roughly causes the bulb socket to loosen; voltage fluctuations easily break the filament; and frequent switching leads to high inrush current. Always pay attention to the condition of the lights—replace them as soon as they dim, and don't compromise safety to save money. If you often drive on national highways, the lifespan of the lights will be even shorter. It's recommended to check them once a year to ensure they stay bright for a safer journey.
