I have a number of 4 ft (1200 mm) linear LED assemblies which were replacements for fluorescent tubes. (Ballasts were removed).
Three-four of these (~10%) have started to fail after 1-2 years of infrequent use. I'd like to troubleshoot this if possible.
The failure starts as with constant flickering, and this lasts for months. Eventually however the light dies completely.
In all cases the other LED tube in the same fixture continued to work. So its not the fixture.
I've posted photos of the driver board carefully extracted from the assembly. If its possible to test & identify a bad component I'd like to try that, both out of interest & possible economy.
If testing is needed I Can perform a comparison to an identical working unit.
Maybe the whole driver board could be replaced but would have to fit in the same restricted space.
Driver lives under the upper right white housing: