YOU SAID:
Turn the lights down high
INTO JAPANESE
ライトをハイにする
BACK INTO ENGLISH
Make the light high
INTO JAPANESE
明かりを高くする
BACK INTO ENGLISH
Increase the light
INTO JAPANESE
光を増やす
BACK INTO ENGLISH
Increase light
INTO JAPANESE
光を増やす
BACK INTO ENGLISH
Increase light
That didn't even make that much sense in English.