Maybe you have a question "How to find a good MPPT controller in market?"
Let me tell you the points:
Firstly, the weight. Good quality MPPT always are heavy, because they need a big heat sink board for heat dispatching. If MPPT weight is very light, I do not think it is a good MPPT.
Secondly, check inside electrical components. Like chips, MOSFET, capacitors. Good quality MPPT will always use good brand components. Inside of MT series controller, you can see we use ST chip, and IR MOSFET, they are very famous international brand in the world, the first class. TVS is from Vishey, also very famous international brand in the world, maybe No. 1.
Also the very big inductors. If you want to know if it's true MPPT controller, you can check if it has a big inductor firstly.
For capacitors, which is also very important, because capacitors decide the lifespan of controllers. MT series MPPT controllers is from Samyoung, one Korean brand. As we know, there are 3 Japanese brands, the most well known in the world, like NCC Nippon chem icon, nichicon, rubycon. But Samyoung is also very famous, it is said they do OEM for NCC.
If you need remote function, you also can choose the IoT communication or Bluetooth (internal or external) communication functions, you can control and monitor the system through PC and Phone; For an new MPPT, of course, it also has RS485 Modbus protocol.
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