Description 1. Wifi Smart Light Switch,One Key On/Off Lights2. Main Function Perfect Quality3. Bluetooth Pairing , Fast Responsesupport Bluetooth 5.0 Distribution Network4. App Remote Control To Make Your Home Smarter5. Turn-On Or Off Led Indicator,With Led Backlight At Night , It Is Easy To Turn On The LightsWiFi EU Mechanical Light Switch 1gangInput voltage: AC 85~250V 50 / 60HzCurrent: maximum 10A/channelMaximum wireless distance: 45MWi-Fi standard: the IEEE 802.11b/gWi-Fi type: 2.4GHzBluetooth version: Bluetooth 5.0Operation mode: pressing button modeStandby power consumption: 0.6WOperating temperature: 0 ~ 60 (32F~140F)Working humidity: 1% ~ 85% RH (non-condensation)Product size: 86mm x 86mm x 41mmColour:blackMaterial:ABSPackage Contents:1 x Expanding Board1 x Chinese And English ManualOnly the above package content, other products are not included.Note: Light reflection 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.