No complaints. I bought it for a small solar build and needed a small controller. It works great and I like that it shows what functions are running on the system. To update. I had a problem with one of the batteries I ordered, it didn't protect against overcharging and got more than 15V from the controller. HUINE technical support responded immediately and helped solve the problem! I was very impressed by their willingness to help. It's the perfect size for small portable builds and you can rest assured that it's a product you can count on as the company is quick to help if there's an issue. Highly recommended!
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