Sonoff L3 - Device Operation and Connectivity; Power On and Bluetooth Pairing; Add Strip via eWeLink App

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5. Power on
Power on the LED strip light with a Type-C USB cable, after powering on, it will enter
the Bluetooth pairing mode by default and flashes.
The strip lights will exit the Bluetooth pairing mode if it not be paired within 3 mins.
If you want to enter this mode again, please long press the controller for 5s until the
strip lights “flashes” then release.
6. Add light strip
Tap “+” and select “Bluetooth Pairing”, then operate following the prompt on the App.
Wi-Fi Settings