also: ヘットライト
noun
Refers to the main forward-facing lights on cars, motorcycles, bicycles, etc.
夜間は必ずヘッドライトをつけてください。
Please always turn on your headlights at night.
noun
A small flashlight worn on the head, often used for outdoor activities or hands-free work.
キャンプではヘッドライトがあると便利だ。
A headlamp is handy when camping.