EPEVER Solar Charge Controller MPPT Control 10A/20A/30A/40A with 12V/24V DC Input (40A) High quality components, perfecting system performance, with maximum conversion efficiency of 98%. Reliable automatic limit function of maximum PV input power, ensuring no overload. LCD panel display design, dynamically displaying tool's operating data and working condition. Multuple load control modes: manual mode, light ON/OFF, light On+Timer and test mode. Advanced Maximum Power Point Tracking (MPPT) technology, with efficiency no less than 99.5%.