Features This is a compatible MPPT charge controller PWM intelligent/efficient/energy saving, it has an efficient charging function of the MPPT controller to automatically track the maximum power point, 10%-30% higher than the ordinary charging efficiency of the regulator. This controller has standby energy saving, more than 30% energy than ordinary controllers, the standby power consumption of only 10mA-15mA. The controller has a battery low voltage protection function. The LCD screen display can provide a clear reading. Made of high quality material, durable and durable. Specification: Model: MPPT L-80. Maximum current: 80 A. Installation (mm2): 20 mm². Installation line (AWG): 2# (AWG). Peak power of the solar panels (max. Wp): 1000 W. Battery capacity configuration: 800 Ah. Battery hoist voltage: 13.8V (12V system)/27.6V (24V system) Battery protection (undervoltage): 10.6V (12V system)/21.2V (24V system) Battery recovery voltage (undervoltage): 12.6V (12V system)/25.2V (24V system) System load loss: <= 13 mA: loop buck; <= 100 mV. Working temperature: -10℃ ~ 60℃. Storage temperature: -30°C ~ -70°C. Working temperature: <= 90%, no condensation Temperature compensation: -4 mV/cell/℃. The maximum open-circuit voltage of solar panels: 18 V ~ 24 V (12 V system) 36 V ~ 48 V (24 V system). Maximum open-circuit voltage of the solar panel: <=48 V. Size: approx. 188 x 128 x 61 mm / 7.4 x 5 x 2.4 inches. Approximate weight 731 g / 25.8 ounces. Package list: 1 x controller. 1 x temperature probe. 1 x English user manual (English language not guaranteed) Package List