This smart LED bulb light is RGBW multi color changing, and warm white cool white for choice, brightness dimmable. Use APP “iLink” to control colors. Wireless control distance is 16-26ft. Please note this smart lamp can only be paired with a single phone (each phone pairs with each bulb light). Multiple bulb lights require multiple Bluetooth devices.Specifications: Power: 9W Voltage: AC85-264V/50-60HZ Lamp holder: E26/E27 Color Temperature(CCT): 6000K Bluetooth Version: Bluetooth 4.0