The 2x Sengled Smart Bulb is a set of two Alexa light bulbs that are Bluetooth dimmable LED bulbs in E27 screw connectors. These energy-efficient bulbs have a wattage of 8.8W and provide 800-999 lumens of light. With a long bulb life of 25,000-29,999 hours, these smart bulbs are designed to last. The included components are the two bulbs themselves, and they come with no assembly required and no batteries needed. Perfect for any home looking to upgrade their lighting with smart technology and energy efficiency in mind.