high-beam

plural-normally

(usually in the plural) The setting of an automobile's headlights adjusted to brighten a longer distance in front of the car, than when on the normal (low-beam) setting.

Japanese Meaning

車のヘッドライトのうち、遠方をより明るく照らすために設定されたもの。 / 高出力の自動車用前照灯（ハイビーム）

What is this buttons?

She switched to high-beam to see farther down the dark country road.

Google Translation / DeepL Translation

暗い田舎道で先をよりよく見えるように、彼女はハイビームに切り替えた。

Details

Sense（1）

(usually in the plural) The setting of an automobile's headlights adjusted to brighten a longer distance in front of the car, than when on the normal (low-beam) setting.