The Gosund Smart Bulbs 4-Pack is a set of A19 RGB+White WiFi LED light bulbs that are compatible with Alexa and Google for smart control. These dimmable bulbs offer a color temperature range of 2700K - 6500K and a multicolor light option. With a modern style and energy-saving features, these bulbs are designed for indoor use and come in a pack of four. Made with a combination of aluminum, brass, and plastic materials, these smart bulbs are easy to install and provide a bright output of 800 lm with a low energy consumption of 9 W. The smart control feature allows for customizable settings and scheduling. New Open Box