Feature:1. Dual battery charging reduces the cost of a separate system, PWM charging method, optional charging frequency.2. With overcharge, overdischarge, electronic short circuit, overload protection and unique antireverse protection.3. With 8pin RJ45 communication port, 35 to +55 working temperature range, 10%90%NC humidity.4. Convenient to use and with good performance, with small size, easy to carry and store.5. Can be used with peace of mind, with strict quality control and quality assurance.Specification:Item Type: Solar ControllerModel: EPIPDB-COMMaterial: PlasticRated System Voltage: 12/24VDC (automatic identification)Voltage Drop of Electric Circuit: 0.26VVoltage Drop of Discharge Circuit: 0.15VNo-load Loss: 6mABattery Type: Open battery, gel batterySelf-Loss: 4mA at night, 10mA when chargingCommunication Port: 8-pin RJ45Operating Temperature Range: -35 to +55Humidity: 10%-90%NCProtection Level: IP30.Package List:1 x Solar Controller1 x User Manual