The 4 Pack Lepro B1 AI Smart Bulb E27 is an indoor LED light bulb that offers a modern and multifunctional lighting solution. It features a multicoloured light with 806 lumens of brightness, equivalent to a 60-watt incandescent bulb but consuming only 8.5 watts. This smart bulb is dimmable and capable of colour-changing, with the ability to sync to music via Bluetooth and WiFi connections, providing a dynamic lighting experience. The bulb has a screw connector, E27 bulb base, and a globe shape with a frosted finish, making it suitable for various indoor lighting applications.