The Philips Hue A19 Colored Lightbulbs Smart LED Bulbs 800lm Bluetooth 2-Pack offers a multicolor option with a color temperature ranging from 2000-6500K. These LED bulbs are smart compatible with Google Assistant and Amazon Alexa, making it easy to control your lighting. With a screw connector and a standard A19 bulb shape, these dimmable bulbs consume 5-9W of power and have a long bulb life of 25,000 hours. The smart home protocol used is Bluetooth, allowing for convenient and customizable lighting control in your home.