Whatever Zigbee ,Wifi or bluetooth, let's see what function tuya added for a bulbs.1. Turn on/off and dimming with your smart phone or voice,which means you can turn on your Chinse house lights when you are in New Yorks. 2. CCT Dimmable, there will be two kinds of CCT led in the bulbs, then it happens. 3. RGBW dimmable, Three kinds of led chips in the bulbs, then it happens, 4 Time.