Name：Smart Lamp Holder Input：AC 90-250V 50/60Hz Output：AC 90-250V 50/60Hz Operating Systems：Android 5.0 & iOS 10) or higher Frequency Standard：WiFi(802.11 b/g/n 2.4GHz) Dimension：E27 Color：White Material：PC VO Max Size：Φ66*92mm Specifications: 1.[Compatible with any light bulbs with E27 screw base] providing your smart lifestyle with a much easier way,which helps turn your existing lighting into a smart one.(Note:This meter only supports 2.4G Wireless Network, NOT for 5G.) 2. [Hands-Free Voice Control]Compatible with Amazon Alexa and Google Home for easy voice control,providing your smart life with much more convenience.Freely control connected appliances via voice when your hands are not free. 3.[Wireless Remote Control]Conveniently control your connected devices with the free mobile "eWeLink"phone App no matter where you are.(Compatible with Android&iOS.)Control your appliances in advance when you are away from home. 4.[Timer Setting]Take full control of your connected appliances intelligently with the timer feature on your App, allowing you to plan the exact time in advance to turn your devices on or off automatically.Auto on/off feature offers you countdown option of 1 min/5mins/30mins/1hour etc. 5.[Family Sharing] Share the control with your family members or friends for maximum convenience, controlling the connected devices together.Support multiple phones to control one light adapter or one phone to control multiple adapters at the same time. Package Included: 1*Smart lamp Holder 1*Instruction Notes: ewelink smart remote requires additional purchase