To activate the ADD-ON:
1) Firstly, connect the ADD-ON to the STARTER through the apposite plug
2) Access the Twinkly App on your device with your Twinkly connected
3) Press on Menu, on the top left corner of the screen, go on Devices
4) Select the Device from the list on which you would like to set the extension and press on (i)
5) Select Active LEDs and then the extension set you have plugged in
6) Let the App calibrate the new number of LEDs, once finished go back to the gallery and Enjoy!