Good to know - Works straight out of the box - just use the Philips Hue Bluetooth app to control up to 10 lights - Pair with an Alexa or Google Assistant speaker to control your lights using simple voice commands - Create just the right atmosphere with over 16 million colours to choose from - Dimmable and tunable white light is great for all occasions - relax with warm white light or focus with a cool white light - Unlock the full range of smart functions, such as out of home control and schedules, with a Hue Bridge (sold separately) _______________________ Please note: The Philips Hue Bridge (sold separately) is required for full smart functionality.