Yeelight blue is a BLE(Bluetooth Low Energy) based, personal, scene lighting system. A BLE supported smart phone can be used to control the bulbs, for color/brightness setting. Some useful functions can be used to set the scene lighting, e.g., flowing Color, dancing with music, delayed turn on/off.
Fix a bug which causes control delay.
With Family Sharing set up, up to six family members can use this app.