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4 of the 8 outputs of my OCHD are faulty. First it was just 1 of them, but it gets worse over time. Had it for around 2 years.
I have a friend who has the same problem with this OCHD.

I had 3 Instruo modules and 2 of them turned out to be faulty, which is not enough experience of course, but I never had any issue with any other brands, I have a large system, and probably had around 150 modules so far.