Autopsy on failed 240V LED garden lantern with PIR.

OK, this would have been a much more thorough autopsy and possibly even repair if I hadn't inadvertently shorted the live 240V rail to the DC side of the dropper. It made quite a bang, blew a chunk out of my meter probe and also blew quite a lot of tracks off the PCB and nuked several components in the process.
Annoyingly I didn't catch the bang on video as I was trying to keep the video short due to the arduous upload times using the crushingly slow Internet connections available on the Isle of Man.
For comparison a 1 hour video takes about 7 hours to upload over 4G on the Isle of Man versus just 30 minutes on the Three-network in Glasgow.
On a plus note, while the PIR module is toast the driver and LED panel are fine, and usable as they are.
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