What are the differences between halogen, xenon, and LED headlights?
1 Answers
Halogen, xenon, and LED headlights differ in terms of light intensity, durability, lighting effect, energy consumption, and beam width. If energy efficiency, environmental friendliness, and high brightness are priorities, LED is the best choice. For convenience and long service life, halogen headlights are suitable. If strong brightness without concealment is desired, xenon headlights are recommended. Below are relevant details: 1. Halogen headlights: When electrified, electrical energy heats the tungsten filament to incandescence for light emission, converting electrical energy into thermal energy and then into light energy. Thomas Edison, the inventor of the light bulb, conducted numerous experiments before selecting "tungsten filament" as the suitable filament. This first-generation product has the advantages of low cost and simple manufacturing, but it also has drawbacks such as high temperature, poor durability, and low brightness. 2. Xenon headlights: Currently, mid-range or high-end vehicle models are equipped with xenon headlights. Their characteristic is high brightness, being more than four times brighter than halogen headlights. However, their drawbacks include high voltage leading to elevated lamp temperature, high power consumption, delayed start-up, and poor penetration of white light in rainy or foggy conditions compared to the yellow light of halogen headlights. 3. LED headlights: These offer high brightness, typically 4-6 times that of original halogen bulbs. They operate at low temperatures, usually between 50-70 degrees Celsius, resulting in very stable performance with almost no light decay. They start instantly without delay. Additionally, they provide very even road illumination, unlike the patchy light distribution of original halogen bulbs or xenon headlights.
