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As we all know the automotive industry has evolved a lot, that's for sure. Along with it, headlamps have reached another level and, after carmakers closely analyzed the way halogen or HID lights influence their models, turn to another option: LEDs.
The working principle of an LED is quite hard to explain, but in short words, they rely on negative electrons moving against positive “holes” across a semiconductor. When a free electron falls into a hole that sits on a lower energy level, it will loose its energy which is released as a photon (the tiniest fraction of light) in a process called electroluminescence.
Multiply this process thousand of times per second and you have a continuous bright light being emitted from something about 2 mm wide - a light emitting diode (LED).
The most important aspect when it comes to LED headlights is the fact that they need very low power to work compared to classic halogen bulbs. LEDs are for instance used on Toyota Prius models and on a couple of other hybrids on which electricity plays a key role - not necessarily for the headlights. The first production units were to be found on the 2004 Audi R8. We at Equinox Global manufacture all types of LEDs. From small bulbs to strips and headlights.