卤素灯：卤素大灯的灯泡内注入了碘等卤素物质。在车辆灯泡的高温作用下，升华钨丝，等到冷却后钨重新凝固在钨丝上。因此，使用寿命比一般的白炽灯要长。
Halogen lamp: halogen headlamps are injected with iodine and other halogen substances. When the bulb of a vehicle is heated at high temperature, the tungsten wire is sublimated, and then the tungsten is solidified on tungsten wire after cooling. Therefore, the service life is longer than that of the ordinary incandescent lamp.
LED：运用一种叫做发光二极管的东西，这个东西是能将电能转化为可见光的固态半导体器件。直接将电转化为光。这就是LED灯的发光原理。
LED: use something called light-emitting diode, which is a solid-state semiconductor that can convert electrical energy into visible light. Electricity is converted directly into light. This is
the light principle of the LED lamp. 优缺点
Advantages and disadvantages
卤素灯：结构比较单一，制造成本也比较低，光线比较均匀，在雨雪天的时候，穿透力比较强。但是，亮度有限，灯光的颜色偏黄。寿命虽然不短，但是LED就不那么有优势了！
Halogen lamp: the structure is relatively simple, the manufacturing cost is relatively low, the light is more uniform, when the rain and snow days, penetration is relatively strong. However, the brightness is limited and the color of the light is yellow. Life expectancy is not very short, but LED is less advantageous.
LED灯：LED灯特别的省电，寿命也长，亮起的速度也比较快。但是LED灯的成本普遍偏高，一旦出现问题，那么修理费用就成了问题。
LED lamp: LED lamp saves electricity, life and lighting speed. However, the cost of LED lamps is generally high. Once there are problems, the repair cost will become a problem.
其实普通的卤素灯足矣满足我们日常的照明需要了，而LED灯除了照明效果好以外还相对很环保，如果当你面临卤素灯跟LED灯选择的时候你会使用哪一个了？
In fact, the ordinary halogen lamp is enough to meet our daily lighting needs, and the LED lamp is relatively environmentally friendly except for the good lighting effect. If you are faced with a halogen and LED lamp, which one do you use?