Philips Hue White & Color Ambiance A19 Extension Light Bulb, Compatible with Alexa. Works with Alexa for voice control (hub required, Alexa device and hub sold separately). Play with light and choose from 16 million colors Sync Philips hue lights with movies and music Warm white to cool bright daylight Energize, concentrate, read and relax with light Wake up gently to your personal sunrise