I am selling this because it is the same as something I already own. I only tested it once and have not used it. The SwitchBot smart bulb connects via Bluetooth and allows for colorful color adjustments, as well as brightness and color temperature adjustments. - Brand: SwitchBot - Model: Smart Bulb E26 - Function: Bluetooth connection - Features: Colorful color adjustment - Application: Smart home - Dimming function: Brightness adjustment - Color adjustment function: Color temperature adjustment Thank you for looking. Lighting SwitchBot