Tuya Bluetooth Smart Ceiling Lamp Round Recessed RGBCW Color Changing Dimmable Ceiling Light 1. Voltage: 85-265V 2. Power: 10W 3. Light source: RGB+CCT 4. Bluetooth version: Bluetooth 4.0 5. APP: Tuya Smart, Smart life 6. Controlled by Tuya APP on mobile phones, supports Alexa's voice, Google speakers, and other smart speakers. (Requires Tuya Bluetooth Mesh gateway) 7. Tuya Bluetooth downlight is easier to connect than Tuya WIFI downlight and can be connected without the Internet. 8. 16 million color adjustments, 16 scene modes. 9. Scene color selection function, speed, and brightness adjustment function. 10. Opening size: 68-75mm 11. Material: PC+PA66 Notes: 1. This is a Bluetooth downlight that connects directly to your phone via Bluetooth. It cannot be individually connected to Alexa or other WiFi devices. A Tuya Bluetooth Mesh Gateway is required to be used with Alexa or Google Assistant. 2. After connecting to a Bluetooth gateway, this downlight can be upgraded to a WiFi-enabled downlight, allowing compatibility with Alexa, Google Assistant, Xiaoai (Mi Smart Home), Tmall Genie, and Xiaodu Assistant. 3. Sharing control capability (APP accounts with registered credentials can share access with another registered APP user, with options to assign either administrator or visitor access permissions). 4. Supports multiple location setups - Each location can simultaneously control up to 200 lighting fixtures.