Snadi 40 Amps MPPT Solar Charge Controller

Electrical Specifications Model: CM-40AMax Charge Current: 40ASystem Voltage: 12V / 24V (Auto-detecting)Max PV Open Circuit Voltage (Voc): 100Vdc Solar Input Operating Voltage12V System: 18Vdc – 100Vdc24V System: 34Vdc – 100Vdc Maximum PV Input Power12V Battery System: 570W max solar array24V Battery System: 1130W max solar array Compatibility & EnvironmentSupported Battery Types: VRLA, Gel, Liquid (Flooded Lead Acid), Li-ion (Lithium-ion)Operating Temperature: -20°C to 40°C