Using this switch is a breeze. First, make sure the power is off. Then, find a suitable place for installation according to the cutout size (21.5mm X 31.5mm). Insert the switch into the cutout and secure it. Once installed, you can turn on the power and enjoy the red neon indicator. When using, avoid exposing it to excessive moisture as it may affect the performance, though the clear cover helps protect against splashes. For maintenance, keep it clean with a dry cloth. If you encounter any issues, don't worry as it comes with a full guarantee. Just reach out to us and we'll take care of it.