The EcoBoxx MPPT Solar Charge Controller comes is offered in two size 25A and 50A. I got the 50A model. It is rated for max PV input of 135V, current 40A and power of 600W. Nominal output voltage is 12V/24V (auto selected) with a charge capacity of 50A. MPPT controller as the most efficient. It measures about 10 1/4" L x 7 7/8" W (counting the mounting brackets) x 2 3/4" T. It is designed to be wall mounted with two fans at the top and intakes on each side. Hookup is made easy because they use a module system, where you attach the leads to a connector bus which slips into a collar (for easy removal) and both push into a set of connectors in the unit. Once connected you use a simple push button to select the battery type (flooded, AGM or Lithium). Its a simple, but powerful charge controller that does what it suppose to. Having a readout or Bluetooth connectivity to get numeric data would be nice. It has a temperature sensor socket, but no details on a sensor (which I do not need here in S. Fla.). It is perfect for a small to midsize solar power system like in an RV, camp or part of an emergency power backup for storms.

I was impress when I recieved this product. Over all good quality. It is as advertised. My set have a minor issue, the extra MC4 connectors were missing the metal pin for it. As it is circled in red on attached picture. Messaged the supplier and agreed to give me a partial refund since they are out of stock for the missing items. I purchased new set of MC4 connectors. They are really helpful in solving the issue.