Philips Hue White and Color Ambiance 2nd Generation A19 60W Equivalent Dimmable LED Smart 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). Choose between millions of colors and shades of white light to light your home, wirelessly control with your smartphone or tablet, and sync your light immersively to music, games, and movies. Requiring the Philips Hue Bridge (sold separately) for the full Hue experience, these bulbs fit standard-size floor and table lamps. Install the LED light 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.