1.no network required, only a mobile phone with Bluetooth on is required for controlling with no delay for this mini design Bluetooth smart switch module that suits for US/EU/UK wall switch box well.Extremely simple and fast pairing is featured to transform your traditional reset or rocker switch into smart . 2.Wireless remote control and Alexa Home voice control are available with Bluetooth gateway connected,one-tap-to associate the switch module to Bluetooth gateway for intelligent functions;Multi-control association enabled in Smart Life App for another controlling way without interference. 3.2 Gang smart switch light breaker is designed specially for traditional 2 Gang light switch to control your two lights independently,smarting your house lighting with extremely simple wiring,even with 2 way circuit functional for controlling one light with two different switches. 4.Bluetooth SIGMESH is stable enough to access and performs well even there is no network suddenly,no more worry about executing whole house smart controls with no network.More importantly,Bluetooth protocol is regarded as a more effective technology than WiFi and ZigBee but with comprehensive and powerful functions enabled. 5. your schedule and countdown in Tuya Smart APP for controlling your devices with much more flexible timetable for energy saving;Relay status adjustable as ON/OFF/Remember last status;Switch type can be easily switched in APP between rocker and button switch;Device share and group control are also operational Voltage:90-250V AC 50/60Hz Current:10A/Gang;Total 10A Wireless Protocol:BLE Mesh Operation Temp.: -10ºC - +40ºC Case Temp.:Tc: +80ºC (Max.) Operation Range:less than equal 200 m Dims (WxDxH):47 x 52 x 22.5 mm IP Rating:IP20 Colour:White Material:plastic Packa Contents: 1 x Switch Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.