Generally a dimmer is controlled by a control unit that sends signal to it, thus a WiFi dimmer switch means the dimmer will be controlled by WiFi signal that sent out by mobile devices corresponding to mobile phones and tablets and the WiFi signal is usually sent out by an lighting control APP.
The WiFi dimmer switch system shall encompass several parts, a dimmer with built-in radio frequency receiver, a WiFi to RF converter that is able to receive WiFi signal and convert it to RF signal and send to the dimmer, a router for home network and a mobile device with a lighting control APP installed. The converter shall have RJ45 port that may be connected to the router and added to the home network. And the mobile device shall be added to the home network through the router.
The APP shall be paired with the dimmer once all parts are connected well, and it is best to connect all these devices properly in response to the user manuals. The APP sends out WiFi signal to the converter which will convert to RF signal and sends it out to the dimmer, then the dimmer will receive the RF signal and output PWM signal the connected lights. If the dimmer is DC version, you need a power supply. The WiFi to RF converter shall be connected along with your router by a RJ45 cable, and a power supply is required for it depending on its input voltage. A great APP has easy and simple control interface and detailed operation instructions.
A WiFi LED dimmer enables full touch control and smooth dimming and switching functions. It is portable in your pocket and enables wireless remote control. It’s smart control that allows you to manage multiple zones (areas) separately or synchronously, as an example, sitting room, bedroom, bathroom, kitchen and so forth, you may control them anywhere within your home. Thanks to the good PWM control of the receiver, the brightness could be adjustable smoothly with none flickering and switching on/off might be gradually instead of suddenly switching on/off that will hurt your eyes. One mobile device can control multiple receivers and each receiver maximally may be controlled by 8 remotes. Many other features like memory function that stored your preferred brightness, and operation return function are available.
It sounds a little bit bit difficult for a brand new user, but the user manual and operation instructions facilitate rather a lot. The final experience is great, a brand new smart home will present to you.