Length (mm): 93Width (mm): 92.3Height (mm): 19.1Main Colour: GreenCountry of Manufacture: ChinaMPN: LC-EWL-4R-NS-A2Minimum Operating Temperature: -40CMaximum Operating Temperature: 85CNumber of Items: 1Manual/Instructions Included: YesDowloadable files: YesSoftware Compatibility: Ewelink AppSuitable (Noted projects): Nest, Alexa and Google Assistant compatibleInput DC Voltage: 5-30VInput AC Voltage: 85-250VDrive Current: 10AMaximum Rating Current: 3500WModule Power Rating: 3500WMounting Hole Size: M3Mounting Dimensions: 84/80mmType: ElectromechanicalChannels: 4AC Rating: 30A 250V AC30A 30V DCActuation Time: Format: 2.4GHz b/g/n WifiConnector Type: Screw terminalsA small 4 channel smart switch. The module allows the control of up to 4 AC devices remotely through your Wifi network and the devices to connected to it. So grab this oppurtunity to liberate yourself from having to use a wall switch ever again.To connect the module you simply insert it between the device and the mains power (both live and neutral). Once connected the device will find your wifi connection and a short configuration through your phone will get it up and running. A few more moments fiddling and you can have it switching on to your voice in a different room. When a signal is received a audible click can be heard as the relay triggers, connecting the output pins.CAUTION - MAINS VOLTAGE CAN BE EXTREMELY DANGEROUS - CARE MUST BE TAKEN IN ITS USEThese modules are compatible with the Ewelink app. This gives you access to configurable timers,scheduling, shared control, voice and direct control. This also opens up access to Nest, Alexa and the Google Assistant.