What is the method to switch on and off?

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To switch on and off an object or device, you need to locate the power button or switch and press it to turn it on or off respectively. The location of the power button or switch can vary depending on the object or device, so it is important to refer to the user manual or instructions if you are unsure. Some devices may also have a standby mode, which allows them to conserve energy without being fully turned off. In this case, you may need to press a different button or follow a different sequence of steps to fully switch off the device.