How do HID High and Low Beams function?

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When your headlights are set too brightly, you use the high beam setting. However, you select the low beam option if you require muted headlights. You must select high beam when driving in low lighting conditions on or near the racetrack. In the winter, twilight hours are more suited for low beams. Different halogen and Best LED headlight bulb cannot be used interchangeably. Two pairs of headlight bulbs are typically present on vehicles that can use both high and low beams. What can toggle the functionality of numerous headlights between high and low?