Smart controllable E14 bulb in a set of 2: Smart Spherical LED bulb with RGB and CCT function, dimmable The Smart Spherical LED bulb is available here in a double pack. It is infinitely dimmable and the light colour can be selected as desired. In addition to white tones (2,200 K to 4,000 K), there are over 100 other light colours to choose from. It is controlled directly via the free Calex app using a WLAN connection, so no additional bridge or gateway is required. In addition, all functions can be controlled with voice commands, as the Calex app is compatible with various voice assistants. Technical features: - RGB colour change and selectable white light: warm white (2,200 K) to universal white (4,000 K) - Controllable via Calex app (free for Android and iOS) - Voice control possible with Amazon Alexa, Google Assistant and Siri Shortcuts - Dimmable via app or voice command - WiFi 2.4 GHz