Hi my name is Isaac and I’m with Wholesale Solar. I have here the Outback Flexmax 80 Amp Charge Controller. This charge controller is exactly like the 60 Amp but it has a built in fan on top to help keep it cool when you’re running the maximum amount of amperage through it. This is a maximum power point tracking charge controller. It allows you to get the most out of each and every solar panel, whether you have a 12 Volt, 24 Volt or 48 Volt off-grid system. Give us a call and we can tell you which solar panels will work best with this charge controller. Thanks!