This problem stems from connecting to the Smart LED with Multicolor Bluetooth Speaker bulb’s secondary Bluetooth module as shown in the picture that starts with “S21XXXXX”—circled in red.
The primary Bluetooth module for this bulb is “Solo 2 RGBW”—circled in blue.
Please ensure your smart device is connected to the primary Bluetooth module—“Solo 2 RGBW”
If you only see the secondary Bluetooth module, circled in red, have your phone forget that Bluetooth connection.
You can turn the Bluetooth off on your phone, wait ten seconds, and turn the Bluetooth back on in order to allow your phone a better chance of discovering the primary Bluetooth module.