If you are looking for a manual for a specific device, it is often helpful to check the following:
The light stays off at night until motion is detected, then shines at 100% brightness for 15–20 seconds. zy8068 manual pdf 2021
Check the charging pins for debris. A simple wipe with a cotton swab can often fix connection issues. Connection Dropping: If you are looking for a manual for
For wireless remote models: