Get Started in Seconds: Ultra simple Plug-n-Play setup. Easily screw the Sengled LED Alexa Bulb to B22 bayonet lamp holder and start enjoying with Alexa Compatible Devices in seconds (automatic linking to Alexa account required). Voice Control with Alexa: Use hands-free Voice Control to turn on, off, or adjust brightness of the Alexa smart bulb B22. You can also use voice via smart home devices like Echo/Echo dot to use advanced features like wake-up routine or away mode. Over 16 million colours to Light Up Every Moment: Turn the smart colour changing light bulb on/off, dim, brighten, set up routines, schedules and more using the Alexa app or Sengled Home App. Create the perfect mood with Tunable whites; Great for parties, entertainment and everyday use. Whole Home Smart Lighting: Connect the WiFi Smart Bulb LED B22 to your 2.4 GHz Wi-Fi network with the Alexa app or Sengled Home app easily without a hub. You can use simple conversion to control your lights when compatible with Amazon Alexa or Google Home. Guaranteed Quality: Sengled Smart Bulb offers ample brightness (60W equivelant, 806 lumens) and brings out true, vibrant colours. Designed to provide longer, more energy efficient illumination. Sengled LED Smart Light Bulb saves 87% energy compared to incandescent lighting. 2-year warranty. Voltage: 230.0 volts