How to install ELEGRP touch dimmer switch（EDM2410）?

ELEGRP touch dimmer switch is equipped with a sensitive touch panel that allows you simply slide your finger on the panel to adjust the brightness of light bulbs. Delicate radian, the skin-like matte surface and its exceptionally quiet rocker design are a great combination of beauty and technology.
Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa or Google Assistant.
Use schedules or countdown timer to set your lights to automatically turn on and off at the time you want. Sync on and off times to sunrise and sunset, porch lights will greet you when you come home late. With the ELEGRP smart light switch, you can create your personalized smart scenes.