Philips Hue White A19 3-Pack 60W Equivalent Dimmable LED Smart Light Bulb (Older Model, Works with Alexa, Apple HomeKit and Google Assistant) Works with Alexa for voice control (hub required, Alexa device and hub sold separately). Automate your lighting experience with Philips Hue and control your lights from home or away. Create light schedules from the Philips Hue App and never come home to a dark house. Requiring the Hue Bridge (sold separately) for the full Hue experience, these bulbs fit standard-size table lamps. Install the LED lights as you would install ordinary bulbs and pair them with the Hue Bridge, which allows you to control smart-bulb-equipped lamps and overhead lights via the Philips Hue App. Easily expand your lighting system with accessories (sold separately), such as a Hue Dimmer Switch, Hue Tap, or Hue Motion Sensor. Pair it for automation with your existing Nest or SmartThings system. This box includes three Philips Hue White A19 Energy Star Certified standard light bulbs, manual, and two-year warranty.