If your family members can never seem to turn off a light, one solution could be motion detectors. They turn on when they sense someone's in the room and turn off when they don't detect any movement. Using sensors like these can cut wasted lighting electricity by 30 percent. https://t.co/E5467hIIUl
如果您的家人似乎永远无法关灯,那么一种解决方案可能是运动探测器。当他们感觉到有人在房间里时它们会打开,当它们没有检测到任何动作时它们会关闭。使用这样的传感器可以将浪费的照明电力减少 30%。 https://t.co/E5467hIIIUl