SHYU Bluetooth Smart Led Light Bulb-Smartphone Controlled Dimmable Multicolored Color Changing Lights-Works with iPhone, iPad, Android Phone and Tablet-RGBCW (40 Watt Equivalent)Size:40 Watt Equivalent 7W E26 Base Bluetooth LED Bulb -40 Watt Equivalent White Mode Help you easily choose warm or cool white for night-light, and help you dim the night-light from 1%~100% easily. TIMER & Wake up & Sleep Use the “timer” opotion to turn your smart bulb on or off at any time. Use the 'Wake up' mode to have the bulb gradually brighten when you wake up, and the “Sleep” mode to have the bulb gradually dimming when you sleep. Make sure the switch keep open all the time,the function can go on. RGB MODE There are 16 millon color changing .You can choose any color in color wheel. MUSIC &M+ &M- MODE Music mode:To sync your lights to music on your Smartphone. For iPhone or iPad,it need sync music to iTunes firstly, then open playlist of music mode. Play music in the app,the light will change color following music. For Android,only sync music to the phone. M+&M- mode: Click it,the light change light automatically as pre-programed color changing mode. GROUP BULBS You can connect to up to 50 bulbs from your app. Control each one individually or group them and control together, You can add 5 bulbs to each groups . SUITABLE PHONE IOS, Android devices compatible with Bluetooth version 4.0 or above APP DOWNLOAD METHODS 1.Search 'Homedey' in IOS app store or in Google play store to download. 2. Scan QR code on a user card which coming with bulb in box. HOW TO SAVE COLOR YOU LIKE Turn off the light,then turn on it in the App.