YOU SAID:

Whatever keeps it lit is unknown.

INTO JAPANESE

何がそれを照らし続けるのかは不明です。

BACK INTO ENGLISH

What keeps it lit is unknown.

INTO JAPANESE

何が点灯し続けるのかは不明です。

BACK INTO ENGLISH

It is unclear what causes the light to stay on.

INTO JAPANESE

ライトが点灯し続ける原因は不明です。

BACK INTO ENGLISH

It is unclear why the light remains on.

INTO JAPANESE

ライトが点灯し続ける理由は不明です。

BACK INTO ENGLISH

It's unclear why the light stays on.

INTO JAPANESE

なぜライトが点灯し続けるのかは不明です。

BACK INTO ENGLISH

It's unclear why the light keeps coming on.

INTO JAPANESE

なぜライトが点灯し続けるのかは不明です。

BACK INTO ENGLISH

It's unclear why the light keeps coming on.