....We'll they lasted approximately a day of operations before I removed them due to safety concerns.
They were running very hot at 3A or 48W of LED lighting each. So were running at half their rated load. I had allowed for double in my design just incase I wanted to add additional strips on each segment if the lighting was not bright enough.
One popped and let out the smoke when I turned the lights back on, which prompted me to investigate further and found the other where all leaking electrolyt due to them running hot.
This led me to an autopsy on the one that popped.
- IMG_1396.JPG (2.55 MiB) Viewed 14851 times
- IMG_1397.JPG (2.83 MiB) Viewed 14851 times
I also feel the output conductor size is underrated for 6A. (I'll get a better shot)
I have a feeling these may have been recycled and put into new casings or not passed QA and re-packaged, as the PCBs had the original mains and output wires cut off flush still in situ and look to be the correct sizing. The PCB is also floating, i.e. not fixed in the housing.
Lessons learnt....you get what you pay for and sometimes it's not worth risking fire for prices. From now on I'll be sticking to Australian rated power-supplies and power packs. I may be able to get my $25 back. will see.....