the WiFi controller can be used to all Mi Light the 2.4G smart light series, RGB light bulb, RGBW light bulb/down light, dual white light bulb/down light, etc. With this simple WiFi controller, you can control your lights with iOS 5.0 or Android smart phone App, free download from Apple App Store, or Android Google Play with the new App name: Mi ·light, automatically setting and you are ready to go!
Mi-Light - APP Download
You can add an endless numbers of controllers to a zone on the 4 channel remote by code-matching to different zones. This way you are completely flexible in creating different group combinations. Below you can see some grouping examples.