Specification Power Supply: 90V-250V AC Max. Current: 10A/250V/ soros Max. Power: 2200W Wireless Standard: 802.11 b/g/n & 433MHz RF Security Mechanism: WPA-PSK/WPA2-PSK Material: ABS V0 Toughened Glass Panel Dimension: 120mm*72mm*32mm, US plug Features Touch PAUL/OPEN/CLOSE Curtain App Remote: Open/Close/Paul Percentage Open/Close curtain Scheduled/Timers/Family Share Works with Amazon Echo, Echo Dot, Amazon Tap Works with Google Home Certification: CE, RoHS, FCC Timing Function Improved roller shutter timer, the wifi curtain switch can be controlled by your mobile phone.Preset timers can work even network is unavailable, but the device must keep power on Voice Control Works with Amazon echo/alexa, google home, google nest, smart speaker connect instruction on the app. with voice control to open and close the curtains. Tuya APP Remote Control Download the free APP 'Tuya' from App store or Google Play, connect to your home Wifi (only 2.4G-wifi is OK) with wireless curtain switch and you can control it anytime from anywhere. Security mechanism One device one owner. Other people cannot add the devices that have already been added. If you want to add your device to another account, don not forget to delete it first. Multifunction The Wifi curtain switch can work with smart curtains, electric doors, smart garage door and other appliances. Percentage function: The default running time of the relay(the open button)is 120 seconds,the running time of the relay can't be change. For example,when you use APP to open the curtain at 50%,and the curtain will stop at 50%,but the relay will continue to run for 120S.If your curtains have limited functions, this will have no effect. How to set percentage? A.Set the opening time:1.Firstly make sure that you closed the shutter fully, press the ”PAUSE” button for 5s until the indicator blinking,then press the "open" button.2. When the shutter open fully,press the “PAUSE” button.the switch will record the opening time.B.Set the closing time:1.Make sure that the shutter was open fully,Press the “PAUSE” button for 5s until the indicator blinking,then press the "close" button.2.When the shutter closed fully,press the "PAUSE" button .The switch will record the closing time. SIZE Wiring diagram Please note at least 3 wires must be required for your motor, Live Wire 1, Live Wire 2 (for OPEN and CLOSE), and Neutral wire , otherwise it can't be connected to the motor , The switch can be compatible with any electric shutter motor with 90-250V AC voltage input, 2200W Max. like Somfy, Dooya, A-OK, etc, but the neutral wire must be required for installation. QI: My device has added successfully but stays offline for a long time Answers: The newly added device needs 1-2 min to connect to your router and the Internet. If it stays offline for a long time, please judge the problem by the green led status: -Green led quickly blinks one time and repeats, which means the device failed to connect to the router. The reason may be you have entered the wrong WiFi password or your device is too far away from the router, which causes a weak WiFi signal. The device cannot be added to the 5G-wifi-router, only the 2.4G-wifi is OK. At last, make sure that your router is MAC-open. -Green led slowly blinks one time and repeats, which means the device has connected to the router and server but failed to be added to the device list. Then power on the device again, if it still not working, just add the device again. -Green led quickly blinks twice and repeats, this means the device has connected to the router but failed to connect to the server. Then please confirm your WiFi router works normally.