留一盏灯 meaning in English

leave a light on

Well , as you know , we always leave the porch light on for you
你知道，我们总会为你留一盏灯的
Change electric wares into energy efficient ones and leave no more than one light open when you leave
把家用电器换成节能型的，出门时最多留一盏灯开着。
Change electric wares into energy efficient ones and leave no more than one light open when you leave home
把家用电器换成节能型的，出门时最多留一盏灯开着。