Features: 1.Smart sloar charge/discharge controller with user?friendly LCD display, image LCD graphic sign, easy to recognize and read. 2.Simple button operation, settable control parameters, you can set flexibly to meet your different application needs. 3.Intelligent PWM solar charge controller, system voltage level automatic identification. With charge and discharge safety hours accumulation function, safe to use. 4.Automatic temperature compensation, charge and discharge control parameters are adjustable. 5.Multiple protection, support battery reverse discharge protection, battery under voltage protection, battery reverse connection protection, overload, short circuit protection. Specification: Item Type: Solar Charge Controller Material: Plastic Size: Approx. 130 x 190 x 62mm/5.1 x 7.5 x 2.4in Standard: CM5024 Rated Voltage: 12V/24V Battery Voltage Maximum Charge and Discharge Current: 50A Solar Panel Input Voltage Range: 18V-800W/36V-1700W Load Working Time Setting: 1-24 Hours Adjustable Charging Mode: PWM Overpressure Protection: 17V/34V Full Disconnect: 13.7V/27.4V Undervoltage Disconnection: 10.5V/21V Over-Discharge Recovery Voltage: 12.2V/24.4V No-Load Loss: 10mA Loop Step-Down: 170mV Temperature Compensation: -4nv/Cell/C Wiring Specification: >3#AWG25mm2 Working Environment Temperature: -25 - 55