Item Type: Solar Controller_x000D_Model: EPIPDB-COM_x000D_Material: Plastic_x000D_Rated System Voltage: 12/24VDC (automatic identification)_x000D_Voltage Drop of Electric Circuit: 0.26V_x000D_Voltage Drop of Discharge Circuit: 0.15V_x000D_No-load Loss: 6mA_x000D_Battery Type: Open battery, gel battery_x000D_Self-Loss: 4mA at night, 10mA when charging_x000D_Communication Port: 8-pin RJ45_x000D_Operating Temperature Range: -35 to +55_x000D_Humidity: 10%-90%NC_x000D_Protection Level: IP30 1Dual battery charging reduces the cost of a separate system, PWM charging method, optional charging frequency. 2With overcharge, overdischarge, electronic short circuit, overload protection and unique anti?reverse protection. 3With 8?pin RJ45 communication port, ?35 to +55 working temperature range, 10%?90%NC humidity. 4Convenient to use and with good performance, with small size, easy to carry and store. 5Can be used with peace of mind, with strict quality control and quality assurance.1 x Solar Controller 1 x User Manual