Hi, johnpianoreed3. You cannot directly switch a QuickBooks Solopreneur subscription to QuickBooks Lite. First, cancel your Solopreneur subscription. Then, you can subscribe to QuickBooks Lite using the same Intuit username and password.
I have already shared detailed information and options in another post you made. You can refer to it here: https://quickbooks.intuit.com/learn-support/en-us/account-management/re-how-do-i-convert-to-10-00-pl....
Don't hesitate to reach out if you have any other questions.