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Glossary

LED Car Bulb what is this?

By 2020-03-18July 25th, 2021No Comments

LED lights made their debut in the first vehicle models around 20 years ago. Initially, they were installed in taillights and brake lights, and later also in turn signals and daytime running lights. In the meantime, LED lights are also used for low beam and high beam and have almost completely replaced halogen and xenon lights.

There are several advantages. For example, LED lights are often brighter than halogen lamps, more energy-efficient, and longer-lasting. Or LED lights with matrix technology: They consist of many small, separately controllable LEDs, and can specifically cut out oncoming cars or the vehicle in front. Their drivers are then not dazzled, but the surrounding area is well illuminated and obstacles are detected earlier.

led car bulb

Why can LED lamps break?

LED lights generally last longer than halogen lamps, but they don’t have eternal life either. The reason: they wear out over time, and the luminosity decreases over the years. If the emitted luminous flux falls below 70 percent of the original value, the LED light source is considered worn out. When this occurs depends very much on the cooling and heat dissipation of the LED modules, especially that of the semiconductor layer (“junction”).

This is because, unlike incandescent lamps, LEDs are very sensitive to temperature: the higher the temperature, the greater the wear. A very warm environment such as a hot engine compartment, a radiator or air-conditioning condenser near the headlamp, and high outside temperatures can shorten the service life of the LED just as much as light output and thus power loss that is too high for the ambient conditions.

Different types of LED lamps for your car:

What you need to know about LED Car Bulbs

David Muench (Carnes Mechanical)

David Muench (Carnes Mechanical)

Hey, I’m David. I’ve worked in a cars store for 6 years. I write reviews and guides, helping people to choose the most suitable technicals and best product for them. I’m happy to finally share my knowledge of the industry here, on CarnesMechanical.

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