PWM solar controller 40A

PWM solar controller 40A　Features: 12V/24V auto recognition LCD display One year's data memory 12V/24V automatic recognition External temperature sensor, automatic temperature compensation Perfect EMC design Many choices of battery type, working mode and protection Four stage charge way: Fast, boost, equalization, float Full automatic electronic protect function PWM solar controller 40A　parameters: Model Max20/30/40 Max solar current or load current 20/30/40A System voltge