‎12.3 centimeters

Voice & App Control: Govee smart light bulbs are compatible with Alexa & Google Assistant, you can control them with simple voice commands. And you’d feel free to turn your smart bulbs on/off, adjust brightness, or change the colors via App Govee Home.
Million of Colors: Govee RGBWW light bulbs with over 16 million vivid color options and 54 preset scene modes, you can explore your preferred ones in it, and find one that suits your moods most, which can bring you a really fantastic lighting experience.
Music Sync: Our smart light bulbs change color and brightness simultaneously when sounds are detected by the microphone on your phone. Note: only works when the microphone is not occupied. Download Govee Home App and enable microphone permissions.