- Bluetooth MESH technology, do not take up broadband router, stable and not easy dropped - Supports updated MESH Gateway Bluetooth products - Xiaoai smart voice control: Link lamp into Mi APP through Xiaoai speakers or other equipment which support Bluetooth MESH gateway function, then it support voice dimming, turn off the light and other intimate operation by the APP Mi - Bluetooth 5.0 wireless connectivity Specification Brand: Mijia Sheathing Material: PC Voltage (V): AC 220-240 Available Light Color: White Rated Power 4W Color temperature 2700-6500K Lumens:300lm Hole size 70-80mm