The LED Downlight effect and function need to work with the Mi Light IR remote controller or Mi Light wifi controller,or by IOS or Android App via Wifi controller. The bulbs must be screwed into the light socket and switched on at the wall for 2.4Ghz wireless operation, allowing the remote control/App to turn the LED bulb on/off, dim/brighten, RGBW RGBWW color change or color Temperature change..(Big order/need customized LED downlight, info@724light.com)
