Voltage range: 90-250v AC(50/60Hz) Max current: 10A Max Wattage: 2200 watts Dimensions: (L)88x(W)38x(H)23mm Color: White Humidity: 5-95 percent Wireless Frequency: 2.4Ghz Working Temp: -20 -75  degree Support  WiFi network Support  433MHz RF remote(for model with 433mhz rf function only Support  status tracking, home appliances status timely feedback to your App Support  remotely turn on or off added devices Support  Max 8 timing tasks for each added device Support  numerousWiFi smart switches one smart phone Easy installation, easy handling and can be activated immediately and stably