1: Tuya Bluetooth downlight is more convenient to connect than Tuya WIFI downlight and can be connected without Internet. 2: 16 million color adjustments, built-in 20 dynamic modes 3: DIY color selection, with memory, timing function, microphone function, music rhythm mode function 4: Scene color selection function, speed and volume adjustment function brightness 5:360 degrees, no need to face the light when remote control Maximum moving distance: 10m Voltage: AC 85 - 265V Dimensions: 113X45MM Hole size: 75-105 MM Luminous flux: 800 (lm) Light emitting color: RGB + white + warm white + natural white Package includes: Tuya Bluetooth Downlight + Pearl Bag Protection + Instruction Manual Notes: 1. This is a Bluetooth downlight, you just need to connect the mobile phone's Bluetooth directly. Can't connect to alexa or other wifi devices alone, if you need to use alexa or google assistant, you need to have a Tuya Bluetooth mesh gateway 2. This bluetooth downlight can be upgraded to a wifi downlight after connecting to a bluetooth gateway, then used with Alexa, Google, Xiaoai, Tmall Genie and Xiaodu Assistant. 3. Shareable Control (an APP that has registered an account can be shared with another account that has registered an APP, and you can choose the identity of the shared person as administrator or visitor) 4. Different locations can be established, and each location can control 200 lamps at the same time (the number can be increased infinitely, and now the default is 200) 4. With Tuya MESH Gateway [SIG], lamps can be connected to third-party voice platforms (Alexa, Google Home, etc.) to achieve voice control 5. With the Tuya MESH [SIG] gateway, the lamps can be controlled remotely (office lamps can be controlled at home) Delivered quantity: 4 pieces