controller to control. All switches can be controlled remotely using your phone, and devices connected with switches can work independently. It can compatible with Amazon-Alexa and Google-Assitant, let you turn on or off your appliances with a voice command, perfect for people who need to handle much housework simultaneously. Make your life easy and convenient.Specifications:Item type: SwitchModel: T3Gang: 1 gang, 2 gang, 3 gang(optional)Plug type: 3 types (optional)Color: BlackInput: 1C: AC 100-240V 50/60Hz 2A Max 2C: AC 100-240V 50/60Hz 4A Max 3C: AC 100-240V 50/60Hz 3A MaxOutput: 1C: AC 100-240V 50/60Hz 2A Max 2C: AC 100-240V 50/60Hz 2A/Gand 4A/Total 3C: AC 100-240V 50/60Hz 1A/Gang 3A/Total LEDs load: 1C/2C: 150W/110V(per channel) 300W/220V(per channel) 3C: 60W/110V(per channel) 100W/220V(per channel)Operating systems: Android_4.1 or higher&iOS 9.0 or higherEnclosure Material: PC V0 &43; toughened glass panelWireless-Standard: IEEE 802.11 b/g/n 2.4GRF: 433.92MHzPackage weight: UK/1Gang: 180g/6.34ounces UK/2Gang: 187g/6.59ounces UK/3Gang: 195g/6.87ounces EU/1Gang: 178g/6.27ounces EU/2Gang: 185g/6.52ounces EU/3Gang: 187g/6.59ounces US/1Gang: 207g/7.3ounces US/2Gang: 217g/7.65ounces US/3Gang: 225g/7.93ounces Package size: EU/UK: 102*102*46mm/4.01*4.01*1.81inches US: 134*88*48mm/5.27*3.46*1.88inches Note: There are 3 kinds of electric plugs for your choice, please choose a specification suit for your country. Package list:1 * Switch