Saving electricity is good and right, but not useful for every electrical appliance. For example, modern televisions must be permanently connected to the power grid. Also, when not to pull the plug.

Approach to completely disconnect the equipment from the mains so that they do not consume energy unnecessarily in standby. The easiest way to do this is with switchable plug strips. But not every device can be disconnected from the network.

If this is the case with the device, the manufacturers usually indicate this in the operating instructions. For example, modern OLED TVs must remain connected so that they can regenerate the display at night.

In theory, it shouldn’t damage the WLAN router if you disconnect it from the network after nightfall. However, this is not absolutely necessary and can have unpleasant side effects.

Nowadays, landline telephones are also commonly connected via routers. If the device is connected to the network, you cannot be called during this time. Turning off the Wi-Fi signal at night helps save power. As with many routers, this can be done with a simple push of a button on the device. It is often possible to set the router menu so that the WLAN module is automatically turned off at night and turned on again in the morning. Here you can find out what’s saving power with a router—and what’s not,

Another example is inkjet printers. Even with them, there is no point in removing them after each use. Present gaining weight. Because the printer starts cleaning the print head every time it is disconnected from the mains and then restarted. It uses a lot of ink. And that is more expensive than most of the electricity saved.