No problems
I found this controller to be adequate for my needs. I only have a micro solar system right now, and this controller has performed well for my needs so far. I could have gotten away with something smaller and cheaper, but this one will allow me to expand with more solar panels in the future. I have not noticed the clicking sound that the other reviewer mentioned. This is a good balance of price/performance for a MPPT controller. There are better ones for much more $$$, and cheaper ones with poorer performance. Probably good for first timers and small PV systems.
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