Description: SONOFF DUALR3 Lite takes your home to the next level.DUALR3 Lite is a flush-mounted Wi-Fi smart dual relay switch module that is installed behind any standard switch to transfer it into a smart switch for wireless remote control with mobile devices or voice command. Unifying your home appliances into an integrated wireless network to make them communicate with one another which is convenient for you to manage and control, including lights, home appliances and motorized facilities like roller shutters, window shades, blinds, awning, etc. Three working modes available. Specifications: DUALR3 Lite is applicable to four wires(GND, neutral, Forward, and Reverse) AC motors, like tubular motors Package Included: 1*DUALR3 Lite Smart Switch Notes: DUALR3 Lite is applicable to four wires(GND, neutral, Forward, and Reverse) AC motors, like tubular motors