Using the Twinkly 4 - Port Modular Enhanced Controller is a breeze. First, connect up to 4 Twinkly Pro light strings to the controller. Then, connect the controller to your Wi - Fi network. Open the free Twinkly App on your Apple device with iOS 11 or later. Follow the app's instructions to configure the controller and set up your light groups. For outdoor use, make sure to use the included type A plug power supply. When it comes to maintenance, keep the controller dry and clean. If there are any issues, try restarting the controller and the app. Always ensure your device meets the iOS requirements for the app to work properly.