Features Multiple Protection The solar charge discharge controller is equipped with over-current, short circuit, reverse polarity protection, low voltage, overcharge protection, and safe to use. Data Transfer Function It has the function of serial communication data transfer, which can centrally manage and remotely control multiple substations for photovoltaic systems. Wide Application The solar controller is suitable for agricultural solar power generation systems, solar street lights, ships and other systems. Protective Coating The solar charge controller is protected with a moisture barrier coating that minimizes damage from moisture and nesting insects. HIGH SPEED MICROPROCESSOR Using high speed CPU microprocessor and high precision A/D analog digital converter, it is a microcomputer data acquisition and monitoring control system. Specification: Item Type:Solar Charge Discharge Controller Material: ABS Rated voltage (VA): 12 V. Temperature compensation: -3 mV/℃/battery. No-load loss: <45 mA. Loop pressure drop: <200 mV. Package list: 1 x 20A Solar Charge Discharge Controller 1 x user manual (English language not guaranteed). 1 x safety plate. or 1 x 30A Solar Charge Discharge Controller 1 x user manual (English language not guaranteed). 1 x safety plate. Package List 1 x 30A Solar Charge Discharge Controller 1 x User Manual 1 x Safety Plate