I bought this camera there some years. The operation is relatively simple in contrast to what one bit read. You have to press the green button while connected devices are in standby for it records their level of consumption in standby (red LED flashes quickly). When the red light blinks slowly it considers that the devices are in standby after one minute it cuts everything. To turn just press the red button. Simple but ... If the connected devices or does not consume much in operation compared to idle mode. He always considered standby and after one minute it will cut all (laptop for example). Another important drawback, after a few months of use, and regularly, while the red light is off (indicating that power should be cut) all connected devices are still live. Now, after 3 years (including 2 of actual use) it becomes useless, the outlet is constantly fed. In short, the idea was good but it clearly lacks reliability ...