光电照明激活在黑夜时间，可以用定时器和运动检测器结合起来，确保他们只工作时，你希望他们。
Photocells activate lighting during hours of darkness and can be combined with timers and motion detectors to ensure they only work when you want them to.
光电照明激活在黑夜时间，可以用定时器和运动检测器结合起来，确保他们只工作时，你希望他们。
Photocells activate lighting during hours of darkness and can be combined with timers and motion detectors to ensure they only work when you want them to.
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