The Difference Between LED Headlights and Halogen Headlights

[Dakota]

Halogen headlights have low production costs and stronger light penetration compared to LED headlights, while LED headlights are energy-efficient and have a longer lifespan. Below are the differences between the two: 1. Different principles: Halogen lamps are an upgraded version of incandescent bulbs, operating on the principle of tungsten filament inside the bulb glowing after being heated by electric current; LED lamps, or light-emitting diodes, use solid-state semiconductor chips as the light-emitting material, directly emitting light through photon emission caused by carrier recombination. 2. Different light colors: Halogen lamps are filled with halogen gases such as iodine or bromine. At high temperatures, the sublimated tungsten filament reacts chemically with the halogen, producing a yellowish light that appears warm; LED lamps convert electrical energy directly into light energy through semiconductor chips, typically emitting blue light. 3. Different color temperatures: Generally, halogen lamps have a color temperature between 2000K and 4000K, while LED lamps usually have a color temperature above 5000K (the difference in color temperature also results in different light colors). 4. Different prices: Halogen lamps are relatively inexpensive and mainly used in standard vehicle models; LED lamps are more expensive and primarily used in mid-to-high-end vehicle models.