The Philips Hue White Bulb (A19) Starter Kit includes two bulbs and a bridge. The bulbs have a warm white light color with a color temperature of 2500-3000 K and a brightness of 800-999 lumens. They are LED type and have a bulb life of 25,000-29,999 hours. The kit is compatible with various smart home systems such as Apple HomeKit, Google Assistant, and Amazon Alexa. It also features dimmable settings and energy-saving certifications. The bulbs have a standard shape and use screw connectors.