NO WIFI FUNCTION READ BEFORE BUYINGTurn off the main power during installation until the panel installation is complete. However, if you test the switch by directly touching the pad (without a control panel), turn off the control panel for 3 minutes, turn on the power, and then turn it on. Otherwise, the control panel will be dead, so you need to reinstall it. INSTALLATION ATTENTION: After testing the touch switch function, you must turn off the main power. Gently slide the glass panel on each side to ensure it engages the clips on the switch. Turn on the appropriate circuit breaker and wait at least 3 minutes before using the switch. FUNCTION: 1 Way means there is only one place where you can turn your light on or off. One switch controls only one light. HUMANIZED DESIGN: It remains closed automatically after a power outage. Avoid leakage and electric shock. Each button of the touch switch is backlit. You can even control them in the dark.