Vehicles used to rely on halogen bulbs for headlights, but the industry has largely switched over to light emitting diode (LED) technology for many new cars. In fact, LEDs were equipped on approximately 40% of highway vehicles in 2021, according to Grand View Research. LEDs offer some advantages over halogen bulbs such as efficiency, brightness, and they don’t get as hot during operation. This shift in technology accounts for why modern headlights are so bright, but also why that
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