Sorry your device has not yet detected the XMAS LIGHTS Wi-Fi portal.
Connect to Wi-Fi:
Open your phone's Wi-Fi settings and then join the "XMAS LIGHTS" network. You'll need within ~50 meters of the house to be in range. Many phones will then automatically display the Wi-fi portal sign-in screen automatically.
Check Notifications once connected:
If the Wi-fi portal page doesn't appear automatically; try swiping down from the top of your phone screen then select the "Sign in to Wi-Fi Network" notification.